AOC 27G4X 27-inch 180Hz gaming monitor delivers fast, smooth, and responsive performance for competitive gaming. It focuses on high refresh rate visuals, low response time, and immersive Fast IPS display quality. Additionally, it features a 27-inch Fast IPS panel with Full HD resolution (1920 × 1080). This panel provides sharp image quality and wide viewing angles, so it improves clarity in both games and everyday use. Moreover, it supports a 180Hz refresh rate with up to 0.5ms MPRT response time. As a result, it delivers extremely smooth motion and reduces blur during fast-paced gameplay. The monitor also includes up to 1ms GtG response performance. Therefore, it improves pixel transition speed and helps reduce ghosting in competitive scenes. In addition, it supports Adaptive Sync and G-SYNC compatibility. This reduces screen tearing and stuttering, so gameplay stays stable and fluid. Furthermore, it includes HDR10 support and low input lag gaming modes. These features enhance visual depth and improve responsiveness during gameplay. AOC 27G4X 27-inch 180Hz gaming monitor provides fast performance, smooth motion clarity, and reliable competitive gaming features for FPS and esports players. Check out other option here! Specifications: 27-inch Fast IPS panel with Full HD 1920 × 1080 resolution 180Hz refresh rate for ultra-smooth gaming performance 0.5ms MPRT response time for reduced motion blur Up to 1ms GtG response for faster pixel transitions Adaptive Sync and G-SYNC compatible for tear-free gameplay
The ViewSonic XG2709A 27″ 240Hz Gaming Monitor is built for competitive gamers who need top-tier performance and responsiveness. With a blazing 240Hz refresh rate, it delivers ultra-smooth visuals in every frame. A 1ms MPRT response time ensures fast and accurate performance, helping reduce motion blur and ghosting during intense action. The Full HD resolution brings sharp details, making it perfect for gaming and daily use. Its SuperClear® IPS panel offers wide viewing angles and rich, vibrant colors. This means no matter where you sit, your screen will always look great. The ViewSonic XG2709A 27″ 240Hz Gaming Monitor features AMD FreeSync™ technology, which eliminates screen tearing and stuttering for smooth, uninterrupted gameplay. HDR10 support brings better brightness and contrast to your visuals, making dark scenes deeper and bright scenes more vivid and clear. It gives games and videos more depth and realism. Multiple input options like HDMI and DisplayPort let you connect to PCs, gaming consoles, and other devices with ease. A 3.5mm audio out port is also available for external speakers or headphones. The stand is fully adjustable, offering tilt, swivel, height, and pivot functions to keep you comfortable. It’s also VESA compatible for wall or arm mounting. Its anti-glare screen reduces reflections, making long gaming sessions easier on your eyes. The sleek, modern design fits into any setup with ease. In conclusion, the ViewSonic XG2709A 27″ 240Hz Gaming Monitor offers speed, comfort, and vibrant visuals, making it a top choice for serious gamers. Specifications: Display : 27″ IPS Resolution : 1920 x 1080 FHD Refresh Rate : 240Hz Response Rate : 1ms MPRT Height Adjust (mm): 130
The LG 27GX790A-B 27″ OLED QHD 480Hz gaming monitor delivers extreme speed and stunning image quality for competitive and professional gamers. Its 27-inch QHD OLED panel produces deep contrast, vibrant colors, and sharp detail, making every scene more immersive. Moreover, OLED technology provides fast pixel response for smooth visuals and minimal motion blur during high-speed gameplay. This monitor is built for esports performance thanks to its ultra-fast 480Hz refresh rate. Additionally, the QHD resolution balances clarity and performance, allowing gamers to enjoy sharp graphics while maintaining high frame rates. The sleek UltraGear design fits modern gaming setups and keeps desks organized while enhancing the overall gaming atmosphere. Connectivity options make it easy to connect PCs and gaming consoles. Furthermore, ergonomic stand adjustments help users maintain comfortable viewing positions during long gaming sessions. Therefore, this monitor suits competitive players and enthusiasts seeking top-tier performance. Finally, it combines OLED picture quality, ultra-fast refresh rate, and gaming-focused features for serious gameplay. Specifications: 27-inch QHD OLED gaming monitor Ultra-fast 480Hz refresh rate Deep contrast and vibrant OLED visuals Designed for competitive gaming setups Multiple connectivity options
The Samsung Crystal UHD U8000F 55″ 4K TV UA55U8000FUXTW uses a 55-inch LCD panel with 3840 × 2160 resolution. It delivers standard 4K output for everyday TV, streaming, and console use. Samsung uses the Crystal Processor 4K for image processing and upscaling. As a result, lower-resolution content converts closer to 4K quality on the screen. In addition, the TV supports HDR10 and HDR10+, which improve contrast between bright and dark areas. The display runs at a 60 Hz refresh rate. Also, Motion Xcelerator reduces blur during fast scenes such as sports and action content. Samsung equips the TV with Tizen OS. Therefore, users access streaming apps, SmartThings integration, and built-in smart functions through a simple interface. Connectivity includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. In addition, the TV supports ALLM for basic gaming response performance. This model focuses on 4K resolution, standard HDR support, and essential smart TV features without advanced gaming or local dimming systems. Specifications: 55-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with upscaling support HDR10 and HDR10+ compatibility 60 Hz refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
Premium bilingual keyboard replacement for MacBook Pro 13″ (A1278, 2009–2012) — choose US/Arabic or UK/Arabic layout. Features durable scissor-switch keys, OEM fit, and clear dual-language legends for seamless typing in English and Arabic. Compatible With: MacBook Pro 13-inch (Model A1278) from Late 2009, Mid 2010, Early 2011, and Mid 2012 (Model Identifiers: MacBookPro5,5, 6,2, 8,1) Layout Options (select at purchase): US/Arabic: Primary legends in Arabic, secondary (top-left) in US QWERTY — includes @, #, and standard US symbols. UK/Arabic: Primary legends in Arabic, secondary in UK QWERTY — includes £ symbol, taller Enter key, and UK-specific punctuation. Both versions feature full Arabic character set US/Arabic: Primary legends in Arabic, secondary (top-left) in US QWERTY — includes @, #, and standard US symbols. UK/Arabic: Primary legends in Arabic, secondary in UK QWERTY — includes £ symbol, taller Enter key, and UK-specific punctuation. Both versions feature full Arabic character set Keyboard Type: Traditional scissor-switch mechanism—reliable, tactile, and serviceable (pre-Butterfly design). Backlighting: Included on Early 2011 and Mid 2012 models only. Keycaps are translucent for even lighting. (Note: Late 2009 & Mid 2010 A1278 models did not support backlighting—keyboard will still function, but lighting requires compatible hardware.) Build & Fit: Precision-molded frame with correct screw mounts and alignment pegs—ensures flush, secure installation in the original top case with no rattling. Installation: Keyboard is screw-mounted (no adhesive)—one of the most DIY-friendly MacBook keyboards. Requires top case access and battery disconnect. Suitable for intermediate users or professionals.
BATTERY DELL WDX0R for Dell Inspiron 13 15 5000 7000 Series 5570 7579 7378 5567 7573 5565 5379 5378 Latitude 3490 3590 3340 3400 3390 3500 3190 Vostro 5468 5568 P69G 3CRH3 11.4V 42Wh About this item 【Specification】Dell laptop Replacement Battery Type: Li-ion; Voltage: 11.4V; Capacity: 42WH; Cells:3-Cell. (It is not the same as the 4-cell 33YDH 56Wh battery ) !!! Please make sure to choose the battery according to the shape of the original one, as the batteries for different laptop models may vary 【Stability】WDXOR WDX0R Laptop Battery Replacement battery for Dell offers 600+ recharge cycles over life of battery 【COMPATIBLE MODEL】(Check description below for more models) Dell Laptop Battery WDX0R P69G001 3CRH3 FC92N T2JX4 C4HCW Y3F7Y Dell Battery 3-cell 42WH 11.4v Li-on WDX0R Dell Battery Dell Inspiron 15 5570 Battery Inspiron 13-7378 battery Inspiron 15-7579 battery Dell Inspiron 5379 Battery Dell Inspiron 5567 Battery Dell Inspiron 13 7000 Battery Dell Inspiron p69g Battery Dell Inspiron 7573 Battery Dell Latitude 3340 3590 Battery Dell Vostro 5568 5468 Series Battery
Specification Details Input/Output Other Battery Capacity (mAh) 5000 Number of Devices Connectable Simultaneously 1 Touch Screen No Sound Mode Stereo Sound Mode Category Speakers Use Camping Tweeter Material Other Bluetooth Version 5.0 Input Power (W) 25-49 W Voice Control Yes Frequency Range 80 Hz – 20 KHz Display Screen No Waterproof Yes Support APP Yes Support Memory Card Yes Material Plastic Playback Function MP3, FLAC, APE, WAV Remote Control No Intelligent Personal Assistant Built-in Microphone Yes Audio Crossover Full-Range Number of Loudspeaker Enclosures 2 Power Source Battery PMPO 40 W Channels 1.1 Communication Audio Line Speaker Type Portable Cabinet Material Plastic Brand Name YIBOLANG Origin Mainland China Certification CE
A capable pre-owned Dell Latitude 5501 with 15.6" touchscreen, 9th Gen Core i5, 16GB RAM, 256GB SSD, and NVIDIA GeForce MX150 2GB—ideal for business users who need a balance of performance, portability, and light graphics power.
BenQ GW2791 27″ 1080p FHD 100Hz IPS Eye-Care Monitor | 3 Years Warranty is designed for work, study, and everyday entertainment. It combines a Full HD IPS panel, a 100Hz refresh rate, and BenQ Eye-Care technologies to deliver comfortable viewing throughout the day. The monitor features a 27-inch IPS display with a Full HD resolution of 1920 × 1080. Therefore, it produces clear images, accurate colors, and wide 178° viewing angles. In addition, it covers 99% of the sRGB color space, making it suitable for office work, web browsing, and media consumption. Moreover, the 100Hz refresh rate and 5ms GtG response time provide smoother motion when scrolling, streaming videos, or playing casual games. As a result, everyday use feels more responsive and fluid. BenQ Eye-Care technologies include Flicker-Free, Low Blue Light, EyeSafe 2.0 certification, and an ePaper mode. Therefore, the monitor helps reduce eye strain during long work or reading sessions. In addition, the anti-glare matte screen minimizes reflections for improved viewing comfort. The monitor includes one HDMI 1.4 port, one DisplayPort 1.2 input, and a headphone jack for flexible connectivity. Furthermore, the stand supports tilt adjustment, and the monitor is VESA 100 × 100 mm compatible for wall or arm mounting. Finally, the BenQ GW2791 delivers smooth performance, accurate colors, and advanced eye-care features for home, office, and everyday computing. Specifications: Display: 27-inch IPS panel with 1920 × 1080 Full HD resolution Refresh Rate: 100Hz with 5ms GtG response time Color: 99% sRGB coverage with 178° viewing angles Eye Care: Flicker-Free, Low Blue Light, EyeSafe 2.0, and ePaper mode Connectivity: HDMI 1.4, DisplayPort 1.2, headphone jack, and VESA 100 × 100 mm support
The Samsung 85″ Crystal UHD U8000F 4K Smart TV UA85U8000FUXTW uses a 3840 × 2160 (4K UHD) LCD panel designed for large-screen viewing. It focuses on screen size and basic 4K playback rather than advanced display features. It uses Samsung’s Crystal Processor 4K for image processing and upscaling. This processor converts lower-resolution video to near-4K output on the screen. It also supports HDR10 and HDR10+ for compatible content, which increases contrast range between bright and dark areas. The native refresh rate is 60 Hz. It includes Motion Xcelerator to reduce blur in fast motion scenes such as sports and games. The TV runs Samsung Tizen OS. This system provides access to streaming apps, web browsing, and SmartThings integration. It also supports voice assistants depending on region and setup. For connectivity, it includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. It also supports features like ALLM for basic gaming responsiveness. Overall, this model is a large 4K Crystal UHD TV focused on size, standard smart features, and basic HDR performance without local dimming or advanced gaming hardware. Specifications: 85-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with upscaling support HDR10 and HDR10+ compatibility 60 Hz native refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
WIWU Alpha Double Layer Sleeve Bag For 16\14″ Laptop/MacBook Brand: WIWU The corner patent design protects your laptop from bumps and drops in potential accident. SBS water resistance zipper Retractable waterproof TPU handle, firm and scratch resistant (commonly used in car trailer ropes) 2 compartment zipper design, organize your accessories well Water-resistant material
The lg 34g600a b ultrawide gaming monitor is built for immersive gameplay and wide-screen productivity. It features a 34-inch curved display with WQHD resolution, which provides more screen space and sharper image quality. Therefore, it enhances both gaming and multitasking experiences. Moreover, the monitor supports a 160Hz refresh rate, which delivers smoother motion during fast gameplay. In addition, it helps reduce motion blur, allowing players to react more quickly in competitive situations. Furthermore, the UltraWide curved design improves viewing comfort and expands the field of view. As a result, users can enjoy a more engaging experience when gaming, watching content, or working across multiple windows. The monitor also includes modern connectivity options for compatibility with gaming systems and PCs. In addition, it maintains stable display performance during long sessions, which supports consistent usage. In conclusion, this monitor offers smooth visuals, a wide display, and reliable performance for both gaming and daily tasks. Specifications: 34-inch UltraWide curved display WQHD (2560 x 1440) resolution 160Hz refresh rate Wide aspect ratio for multitasking Suitable for gaming and productivity
Apple Magic Mouse: Wireless, Bluetooth, Rechargeable. Works with Mac or iPad; Multi-Touch Surface - White (Pre-Owned) Apple Magic Mouse: Wireless, Bluetooth, Rechargeable. Works with Mac or iPad; Multi-Touch Surface – White (Pre-Owned) About this item WIRELESS, RECHARGEABLE CONVENIENCE — Magic Mouse connects wirelessly to your device via Bluetooth. And the rechargeable internal battery means no loose batteries to replace. WORKS WITH MAC OR IPAD — It’s ready to go right out of the box and pairs quickly with your Mac or iPad so you can get to work right away. SWIPE AND SCROLL ON THE MULTI-TOUCH SURFACE — The Multi-Touch surface allows you to perform simple gestures such as swiping and scrolling. And an optimized foot design lets Magic Mouse glide smoothly across your desk. GO WEEKS WITHOUT CHARGING — The incredibly long-lasting internal battery will power your Magic Mouse for about a month or more between charges. Comes with a woven USB-C to Lightning Cable that lets you pair and charge by connecting to a USB-C port on your Mac or iPad. SYSTEM REQUIREMENTS — Requires a Bluetooth-enabled Mac with OS X 10.11 or later or an iPad with iPadOS 13.4 or later.
The MSI G2412F 24″ 180Hz Gaming Monitor is built for smooth and immersive gaming. It offers fast performance, vibrant visuals, and a sleek design. With a 24-inch Full HD IPS display, this monitor delivers sharp and clear images. The IPS panel ensures accurate colors and wide viewing angles. This makes it perfect for both gaming and content creation. The 180Hz refresh rate provides ultra-smooth gameplay with reduced motion blur. Combined with a 1ms response time, it ensures quick reactions and minimal lag. This is ideal for fast-paced games like shooters and racing titles. Equipped with AMD FreeSync Premium technology, the monitor eliminates screen tearing and stuttering. It synchronizes the display’s refresh rate with the GPU for a seamless gaming experience. The MSI G2412F 24″ 180Hz Gaming Monitor features a frameless design for an immersive viewing experience. The slim bezels make it great for multi-monitor setups. The sleek and modern look enhances any gaming setup. With Anti-Flicker and Less Blue Light technology, this monitor reduces eye strain during long gaming sessions. You can play for hours without discomfort, ensuring a better gaming experience. Connectivity options include DisplayPort 1.2 and HDMI 1.4 for compatibility with PCs and gaming consoles. Switching between devices is simple, making it a versatile choice for gamers. The adjustable tilt stand allows for a comfortable viewing angle. It provides flexibility, ensuring the best position for extended gaming sessions. The MSI G2412F 24″ 180Hz Gaming Monitor is perfect for competitive gamers looking for speed, clarity, and smooth performance. Its high refresh rate, fast response time, and stunning visuals make it a great addition to any gaming setup. Specifications: Display : 24″ Rapid IPS Resolution : 1920 x 1080 (FHD) Refresh Rate : 180Hz Response Rate : 1ms
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A1990, 2018–2019, Intel)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15-inch (2018 & 2019, Model A1990, Model Identifiers MacBookPro15,2) with Intel Core i7/i9 processors. Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits: Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is unusable Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is unusable Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only.
Battery Replacement for A1819 MacBook Pro 13" A1706 Late 2016 Mid 2017 MLH12LL MLH12LL/A MLH12LL/A MPXV2LL MPXV2LL/A MPXV2LL/A Battery Replacement for A1819 MacBook Pro 13″ A1706 Late 2016 Mid 2017 MLH12LL MLH12LL/A MLH12LL/A MPXV2LL MPXV2LL/A MPXV2LL/A 【Technical Details:】 Model Number: A1819; Battery type: Li-ion; Voltage: 11.1V; Capacity: 4300mAh 49.02Wh，Condition: brand new 【Compatible with:】 Mid 2017 MacBook Pro 13-inch Series: MacBook Pro 13 inch Touch A1706(Mid 2017); MacBook Pro 13 inch A1706(EMC 3163) (Mid 2017); MacBook Pro 13-inch MPXV2LL/A or MPXW2LL/A or MPXX2LL/A or MPXY2LL/A 【Compatible with:】MacBook Pro 13 inch Touch A1706(Late 2016); MacBook Pro 13 inch A1706(EMC 3071) (Late 2016); MacBook Pro 13-inch MLH12LL/A or MLVP2LL/A or MNQF2LL/A or MNQG2LL/A 【Compatible with:】2016 2017 MacBook Pro 13″ Four Thunderbolt 3 Ports A1706 model: MacBook Pro 13″ Touch i5 2.9GHz A1706(Late 2016); MacBook Pro 13″ Touch i5 3.1GHz A1706(Late 2016); MacBook Pro 13″ Touch i5 3.1GHz A1706(Mid 2017); MacBook Pro 13″ Touch i5 3.3GHz A1706(Mid 2017); MacBook Pro 13″ Touch i7 3.3GHz A1706(Late 2016); MacBook Pro 13″ Touch i7 3.5GHz A1706(Mid 2017)
OEM-spec trackpad replacement (without flex cable) for MacBook Air 15.3″ M2 (Model A2941, EMC 8301) in Silver finish—engineered for precise Force Touch response, smooth multi-touch gestures, and seamless integration with the original chassis. Compatible With: MacBook Air 15.3-inch (2023, Model A2941, EMC 8301) with Apple M2 chip. Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting brackets. Designed for technicians who will reuse or transfer the original internal components. Finish: Silver—matches the original Silver and Starlight lower case for perfect visual continuity. Force Touch Support: Fully compatible with pressure-sensitive input and haptic feedback when used with the original Taptic Engine and logic board—no loss of functionality. Precision Build: Mirror-smooth glass surface with exact curvature, texture, and micro-click mechanism matching Apple’s OEM standards for consistent tracking and tactile feel. Installation Requirements: Requires full bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Proper adhesive application is essential to maintain structural rigidity and sensor alignment. Recommended for professional or certified repair technicians only.
The ViewSonic 22″ 75Hz Monitor offers a superb viewing experience with its high-quality display. Whether you’re working, gaming, or watching videos, this monitor delivers vibrant and crisp visuals. With Full HD 1080p resolution, the ViewSonic 22″ 75Hz Monitor provides sharp and clear images. Enjoy your favorite content with stunning detail and lifelike colors, making every viewing session a pleasure. The 75Hz refresh rate ensures smooth and fluid motion, reducing screen tearing and stuttering. This makes the ViewSonic 22″ 75Hz Monitor ideal for gaming and fast-paced videos, enhancing your overall experience. Designed for comfort and convenience, this monitor features an anti-glare screen to reduce eye strain. The ViewSonic 22″ 75Hz Monitor also has a flicker-free technology and blue light filter, ensuring a comfortable viewing experience even during extended use. Connectivity is a breeze with the ViewSonic 22″ 75Hz Monitor. It comes with HDMI and VGA ports, allowing you to connect a variety of devices with ease. Whether it’s your computer, gaming console, or media player, this monitor has you covered. The sleek and modern design of the ViewSonic 22″ 75Hz Monitor complements any workspace or gaming setup. Its slim profile and minimalistic stand make it a stylish addition to your desk, saving space without compromising on performance. In conclusion, the ViewSonic 22″ 75Hz Monitor combines high resolution, smooth refresh rate, and ergonomic design for an exceptional viewing experience. Upgrade to the ViewSonic 22″ 75Hz Monitor today and enjoy superior performance and style. Specifications: Display : 22″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Rate : 5ms GTG
BenQ RE8604 86” 4K UHD Interactive Flat Panel is a large interactive display designed for classrooms, meeting rooms, and training environments. It supports touch interaction, built-in Android system, and 4K resolution for collaboration and presentations. It features an 86-inch IPS panel with 3840 × 2160 4K UHD resolution. Therefore, it delivers sharp visuals and wide viewing angles for group use. In addition, it supports up to 40-point multi-touch input for writing and collaboration. Moreover, it runs an Android-based system (EDLA-supported depending on configuration). As a result, users can open apps, use whiteboard tools, and present content directly on the display without an external PC. The display includes anti-glare glass. Therefore, it remains readable in bright environments. In addition, it supports 4K 60Hz output for smooth visuals during presentations and video playback. Furthermore, it includes HDMI, USB, USB-C, LAN, and OPS slot connectivity. As a result, it works with laptops, external PCs, and modular computing systems. It also includes built-in speakers for classroom and meeting audio. Therefore, it supports presentations without extra sound systems. Finally, the BenQ RE8604 delivers a large 4K interactive workspace with multi-touch control and flexible connectivity for education and business use. Specifications: Display: 86-inch IPS panel with 3840×2160 4K UHD resolution Touch: Up to 40-point multi-touch support for collaboration System: Android-based interactive platform (EDLA support depending on model) Connectivity: HDMI, USB, USB-C, LAN, and OPS slot Display: Anti-glare screen with 4K 60Hz smooth output
