Genuine-spec touchpad flex cable for MacBook Pro 14″ (Model A2442, 2021, M1 Pro/Max)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control. Compatible With: MacBook Pro 14-inch (2021, Model A2442) with Apple M1 Pro or M1 Max chip (Model Identifiers: MacBookPro18,3 / MacBookPro18,4). Part Type: Touchpad flex cable only—does not include the trackpad, Taptic Engine, or mounting brackets. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Carries touch input, Force Touch pressure data, and haptic feedback signals—critical for macOS trackpad gestures, Force Click, and Taptic Engine responsiveness. OEM-Quality Build: Matches Apple’s original flex circuit in length, connector pitch, shielding, and bend geometry—ensures reliable signal transmission and durability under repeated use. Common Use Cases: Replacing a damaged, torn, or corroded original flex cable Completing a trackpad replacement when the original cable is unusable Fixing intermittent trackpad issues, unresponsiveness, or loss of Force Touch Replacing a damaged, torn, or corroded original flex cable Completing a trackpad replacement when the original cable is unusable Fixing intermittent trackpad issues, unresponsiveness, or loss of Force Touch Installation Note: Requires full bottom case removal and careful routing beneath internal components. Connectors use ZIF (Zero Insertion Force) sockets—must be seated properly without force. Recommended for certified or highly experienced technicians only.
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.
MULTI-FUNCTIONAL: Portable retro speaker, support Bluetooth, U disk, Memory Card, AUX (connect to MP3, MP4 player, smartphone, PC) to play music. It is easy to enjoy stereo sound for music lovers. LONG BATTERY LIFE: Bluetooth speaker has a built-in 1800mAh battery, rechargeable and environmentally friendly, providing 8 hours of battery life, ensuring you can enjoy your favorite music and radio stations for a long time. CLEAR SOUND: The radio speaker’s built-in powerful DSP chip and antenna provide excellent reception, allowing you to experience clear sound. Stations can be easily selected, making it convenient to find your favorite FM channels. POWERFUL: This speaker is compact but with high power, the 5W speaker delivers powerful sound quality. Allows you to enjoy rich and immersive sound, transforming your room into a charming listening environment. RETRO DESIGN: The small FM radio speaker with charming and versatile design incorporates classic aesthetics, making it a delightful addition to your sound collection. For living rooms, bedrooms, parties, etc.
WiWU Factory Customize Eco-friendly Laptop Handbag Laptop bag for Macbook Air Pro
The Asus VP228HE 22″ 60Hz Gaming Monitor is designed for gamers who want smooth visuals and fast response times. It offers a great balance of performance and affordability for casual and competitive players. This gaming monitor features a 22-inch Full HD display with a 1920 x 1080 resolution. The screen delivers sharp visuals with vibrant colors, enhancing your gaming experience. The 60Hz refresh rate ensures smooth motion in fast-paced games. With a 1ms response time, the Asus VP228HE reduces motion blur and ghosting. This makes gameplay more responsive, giving you an advantage in action-packed games. The monitor also includes ASUS GamePlus technology with crosshair and timer functions for better accuracy. The Asus VP228HE 22″ 60Hz Gaming Monitor features ASUS Eye Care technology. It includes a flicker-free display and a blue light filter to reduce eye strain. You can game for longer periods without discomfort. For connectivity, this monitor includes HDMI and VGA ports, making it compatible with gaming consoles, PCs, and laptops. It provides flexibility for different gaming setups. The built-in speakers deliver clear sound, eliminating the need for external speakers. The gaming monitor has a sleek and compact design that fits any setup. It is lightweight and easy to adjust, ensuring comfortable viewing angles. The durable build ensures long-lasting performance. If you need a reliable and affordable gaming monitor, the Asus VP228HE 22″ 60Hz Gaming Monitor is a great choice. It delivers smooth visuals, fast response times, and eye care features for comfortable gaming. Specifications: Display : 22″ TN Resolution : 1920×1080 Refresh Rate : 60Hz Response Rate : 1ms Speaker : 1.5W x2
The MSI G32C4X 32″ Monitor delivers ultra-smooth and immersive visuals for gaming and entertainment.It features a 32-inch Full HD curved display that enhances immersion and provides a wide field of view. Moreover, its 250Hz refresh rate ensures extremely smooth motion during fast-paced games. This monitor uses a VA panel for strong contrast and deep colors. Additionally, the fast response time reduces blur and ghosting for competitive gaming. The anti-glare screen helps minimize reflections in bright rooms. HDMI and DisplayPort inputs allow easy connection to gaming PCs and consoles. Furthermore, the curved design and tilt adjustment help you maintain a comfortable viewing angle during long sessions. Low blue light and flicker-free technologies reduce eye strain during extended use. This display is ideal for gamers, esports enthusiasts, and home users alike. Therefore, it supports competitive gaming, streaming, and everyday computing. Finally, it combines fast performance, immersive visuals, and comfort features for daily use. Specifications: Display : 31.5″ VA Resolution : 1920 x 1080 (FHD) Refresh Rate : 250Hz Response Rate : 1ms Curvature : 1500R
The MSI PRO MP245PG E14 monitor delivers smooth performance for work and daily tasks. It features a 24-inch Full HD display that provides clear visuals and accurate colors. Therefore, users can handle office applications, browsing, and content viewing with ease. Moreover, the 144Hz refresh rate ensures smoother motion during fast screen activity. The 1ms response time helps reduce motion blur for better clarity. As a result, users enjoy a more responsive and comfortable viewing experience throughout the day. In addition, the IPS panel maintains consistent colors across wide viewing angles. This allows multiple users to view the screen without distortion. Furthermore, eye care features help reduce strain during long working hours. The monitor also includes essential connectivity options for flexible device integration. Consequently, the MSI PRO MP245PG E14 monitor supports both productivity and smooth visual performance in any workspace. MSI PRO MP245PG E14 monitor offers reliable display quality and enhanced smoothness for modern business environments. Specifications: 24-inch Full HD (1920 × 1080) IPS display 144Hz refresh rate for smoother motion 1ms response time for reduced blur Wide viewing angles with consistent color Eye care features for comfortable use
The Lenovo Legion 24″ 320Hz FHD Gaming Monitor is designed for competitive gamers seeking ultra-smooth visuals. First, its 1920 × 1080 Full HD resolution delivers sharp and clear images for fast-paced games. The 320Hz refresh rate ensures fluid motion and reduced screen tearing. In addition, the 0.5ms response time minimizes ghosting and motion blur. Moreover, adaptive sync technology enhances smooth gameplay across various titles. The sleek slim-bezel design fits seamlessly into any gaming setup. Furthermore, its ergonomic stand allows height and tilt adjustments for comfortable long gaming sessions. Finally, the Lenovo Legion 24″ 320Hz FHD Gaming Monitor combines high refresh performance, fast response, and adaptive sync in one competitive display. Overall, it is ideal for esports players and serious gaming enthusiasts. Specifications: 24″ Full HD 1920 × 1080 resolution 320Hz ultra-fast refresh rate 0.5ms response time for minimal ghosting Adaptive sync for smooth gameplay Ergonomic stand with height and tilt adjustment
WiWU S500 Foldable Lightweight Plastic Laptop Stand Description WiWU S500 Foldable Lightweight Plastic Laptop Stand Brand: wiwu Material: ABS+Aluminum alloy Foldable Height Adjustment. Laptop stand with foldable technology, light weight, easy to carry Adjustable from 20 to 40 degrees and height adjustable from 3.15 to 5.12 inches. There are 6 corners Compatible with laptops (11 inch-15 inch) Macbook, iMac, ipad, Microsoft Surface PR, Thinkpad, Lenovo, Dell, HP and more. With anti-slip rubber pad
The ASUS VA279HG 27″ FHD Eye Care Monitor delivers clear Full HD visuals on a large 27-inch screen. It offers bright colors and a wide viewing area. This makes work, entertainment, and daily tasks look clean and comfortable. The larger display improves productivity and visual clarity. Moreover, the ASUS VA279HG 27″ FHD Eye Care Monitor features a 75Hz refresh rate. This creates smoother motion in games and videos. It reduces blur and keeps movement stable. You enjoy a more responsive and pleasant viewing experience. In addition, Adaptive Sync support minimizes screen tearing. It keeps visuals smooth during fast scenes. Gamers and casual users benefit from consistent performance. This adds comfort to longer sessions. Furthermore, the monitor includes ASUS Eye Care technology. It reduces blue light and eliminates screen flicker. This protects your eyes from strain and fatigue. You can work or watch content for longer with ease. Also the ASUS VA279HG 27″ FHD Eye Care Monitor uses a VA panel for strong contrast. It delivers deeper blacks and more vivid colors. Also, the design is simple and modern. The thin frame looks clean on any desk. The stand offers tilt adjustment for better comfort. This helps you find the ideal viewing angle easily. Finally connectivity is flexible and reliable. The monitor includes HDMI and VGA ports. This allows quick setup with many devices. It works well with laptops, desktops, and media players. Overall, the ASUS VA279HG 27″ FHD Eye Care Monitor combines smooth performance, eye protection, and a spacious display. It is ideal for home, office, and entertainment use. It delivers comfort, clarity, and strong everyday value. Specifications: Display : 27″ IPS Resolution : FHD Refresh Rate : 120Hz Response Time : 1ms Model : 90LM04J1-B02371
A4Tech KRS-8372 USB Keyboard QWERTY English Black
A1707 Battery Replacement, A1820 Battery for MacBook Pro 15″ (Late 2016, Mid 2017) Touch Bar EMC 3072 EMC 3162 MLH32 MLH42 MLW72 MLW82 MPTR2 MPTT2 MLH52 MLW92 MPTU2 MPTV2 MPTW2 MPTX2 Specification】Voltage: 11.4V. Capacity: 76Wh 6667mAh. Battery Type: Li-ion. Condition: Brand new, from high quality materials, top circuit boards and smart chip. 【Compatible Part Number】A1820, A1707, A1707(EMC 3072), A1707(EMC 3162), 020-01728, MacBookPro13,3 , MacBookPro14,3. 【Compatible Laptop Models】MacBook Pro 15-Inch (Late 2016) & (Mid 2017) Model A1707 with touch bar, fit for MLH32LL/A MLH42LL/A MLH52LL/A MLW92LL/A MPTU2LL/A MPTV2LL/A MPTR2LL/A MPTT2LL/A MPTW2LL/A MPTX2LL/A MLW72LL/A MLW82LL/A. 【Note】The tools are included. Double-sided tape is attached to the back of the battery or double-sided tape is included in the package. But No battery installation instruction. The MBP battery is difficult to disassemble, we suggest you search for related installation videos on the Internet or find a technician for help.
The Lenovo L29w-30 is a 29-inch QHD business monitor designed for productivity and multitasking. First, its 2560 × 1080 resolution delivers sharp and clear visuals for spreadsheets, documents, and presentations. The ultra-wide 21:9 aspect ratio allows seamless multitasking across multiple windows. In addition, the monitor features a slim bezel design for a clean, professional workspace. Moreover, anti-glare technology reduces eye strain during extended use. The adjustable stand provides tilt and height options for comfortable viewing. Furthermore, multiple connectivity options, including HDMI and DisplayPort, ensure easy integration with laptops and desktops. Finally, the Lenovo L29w-30 combines wide-screen clarity, ergonomic adjustments, and flexible connectivity in one business monitor. Overall, it is ideal for office environments, remote work, and professional setups. Specifications: 29″ 2560 × 1080 QHD resolution Ultra-wide 21:9 aspect ratio Adjustable tilt and height stand Anti-glare display for reduced eye strain HDMI and DisplayPort connectivity
The Royal Kludge RK61 is an ultra-compact 60% mechanical gaming keyboard featuring brilliant RGB backlighting and smooth, linear RK Red switches. Equipped with versatile triple-mode connectivity (Bluetooth, 2.4GHz wireless, and USB-C wired), it offers maximum flexibility and a clean, cable-free desktop layout optimized for both competitive gaming and office productivity. ✅ Full Specifications: Model: Royal Kludge RK61 (61 Keys) — Black Edition Interface / Connection: Triple Mode Connection (3C): Wireless 2.4GHz (via included USB dongle) Bluetooth 5.1 (Pairs with up to 3 devices simultaneously) Wired USB Type-C (Detachable cable included) Interface / Connection: Triple Mode Connection (3C): Wireless 2.4GHz (via included USB dongle) Bluetooth 5.1 (Pairs with up to 3 devices simultaneously) Wired USB Type-C (Detachable cable included) Switch Type: RK Red Mechanical Switches (Linear feel, smooth and quiet keystrokes, ideal for fast-paced gaming and quiet office typing) Hot-Swappable PCB: Yes (Supports easy replacement of 3-pin or 5-pin switches without soldering) Layout: Compact 60% Minimalism Layout, 61 Keys (US QWERTY / Arabic-English dual print variants supported) Backlighting: Full dynamic RGB Backlight with 18 customizable lighting modes, 8 monochrome modes, and adjustable brightness/speed Material & Build: Durable ABS polymer housing with high-quality ergonomically curved keycaps to reduce hand fatigue Design & Form Factor: Compact, space-saving design with a built-in 8° ergonomic typing angle for optimal comfort Battery Capacity: 1450mAh rechargeable battery built-in (Up to 13 hours of continuous use with backlighting active, high standby efficiency) Compatibility: Windows, macOS, Android, iOS, Linux, and major gaming consoles Dimensions: Approx. 289 x 103 x 39 mm (11.4 x 4 x 1.6 inches) Weight: Approx. 0.50 kg (1.1 lbs)
The MSI MAG 342CQR E2 34″ 180Hz Curved Gaming Monitor is designed to elevate your gaming experience. Its 34-inch ultrawide display with a 3440 x 1440 resolution provides immersive visuals, while the 1500R curvature ensures a comfortable viewing angle. MSI Firstly with a rapid 180Hz refresh rate and 1ms MPRT response time, this monitor delivers smooth and responsive gameplay, ideal for fast-paced genres like FPS and racing games. The VA panel offers a 3000:1 contrast ratio, producing deep blacks and vibrant colors. Furthermore the MSI MAG 342CQR E2 supports HDR Ready technology, enhancing image details and color accuracy. AI Vision technology further improves brightness and color saturation, revealing details in dark scenes. Moreover connectivity options include DisplayPort 1.4a and HDMI 2.0b ports, supporting up to 180Hz and 100Hz refresh rates, respectively. The monitor also features Adaptive Sync technology, reducing screen tearing and stuttering. Also ergonomic adjustments are made easy with tilt, swivel, and height options, ensuring comfort during extended gaming sessions. The monitor’s frameless design and anti-glare coating provide a sleek look and reduce eye strain. In summary, the MSI MAG 342CQR E2 34″ 180Hz Curved Gaming Monitor combines high performance, immersive visuals, and ergonomic design, making it a top choice for gamers seeking a competitive edge. Specifications: Display : 34″ VA Resolution : 3440 x 1440 (UWQHD) Refresh Rate : 180Hz Response Time : 1ms (MPRT) Curvature : Curve 1500R
Logitech G403 HERO – Ergonomic wired gaming mouse with HERO 25K sensor and ultra-precise 25,600 DPI tracking.Delivers pro-grade performance with customizable RGB, 6 buttons, and optional weight tuning. ✅ Full Specifications: Model: Logitech G403 HERO Sensor: HERO 25K Optical Sensor DPI: 100 – 25,600 DPI (adjustable with no smoothing, acceleration, or filtering) Polling Rate: 1000 Hz (1ms response time) Tracking Speed: >400 IPS Acceleration: >40G Buttons: 6 programmable buttons (including 2 side buttons) Switches: Mechanical with metal spring button tensioning (rated for 20M+ clicks) Lighting: RGB Lighting (logo and scroll wheel, customizable via G HUB) Weight: Approx. 87g (mouse only) + 10g optional weight Grip Style: Palm and claw grip support Cable: 2.1 meters (standard rubber cable) Build: Ergonomic right-handed design with rubber side grips Software: Logitech G HUB (for DPI, lighting, macros, and profiles) Compatibility: Windows 7 or later, macOS 10.11 or later, Chrome OS Onboard Memory: Yes (save DPI and button settings directly to the mouse)
ViewSonic VG2440V 24” Monitor BUILT FOR VIDEO CONFERENCING An integrated Full HD webcam, microphone and speakers deliver clear communication and video conferencing whether your team is across the country or across the globe. ADJUSTABILITY AND PRIVACY The camera features +/- 5-degree tilt so you can find the perfect angle for your videos. When you don’t want to be on camera, a physical shutter slides over the camera lens to ensure your privacy. ViewSonic VG2440V 24” Monitor FULL HD 1080P RESOLUTION This monitor features Full HD 1920×1080 resolution for unbelievable pixel-by-pixel image performance. You’ll experience the most amazing clarity and detail whether it be while working, gaming, or enjoying the latest in multimedia entertainment. Display Monitor ERGONOMIC DESIGN With advanced ergonomic features, ViewSonic monitors are designed to provide a greater range of adjustment for increased productivity and comfort. Users can reduce eyestrain and physical fatigue by adjusting the monitor via swivel, tilt, and height adjust options. ViewSonic VG2440V 24” Monitor Full Specifications : DISPLAY SIZE (IN.) 24” Monitor PANEL TYPE IPS RESOLUTION 1920 x 1080 STATIC CONTRAST RATIO 1,000:1 DISPLAY DISPLAY SIZE (IN.) 24 VIEWABLE AREA (IN.) 23.8 PANEL TYPE IPS RESOLUTION 1920 x 1080 RESOLUTION TYPE Full HD (1920×1080) STATIC CONTRAST RATIO 1,000:1 DYNAMIC CONTRAST RATIO 50,000,000:1 LIGHT SOURCE LED BRIGHTNESS 250 cd/m2 COLORS 16.7M COLOR SPACE SUPPORT 8 bits ASPECT RATIO 16:9 RESPONSE TIME (TYPICAL GTG) 5ms VIEWING ANGLES 178º horizontal, 178º vertical PANEL SURFACE Anti-glare, Hard coating (3H) COMPATIBILITY PC RESOLUTION (MAX) 1920×1080 MAC® RESOLUTION (MAX) 1920×1080 CONNECTOR USB TYPE A 3 USB TYPE B 1 3.5MM AUDIO IN 1 3.5MM AUDIO OUT 1 VGA 1 HDMI 1.4 IN 1 DISPLAYPORT 1 AUDIO INTERNAL SPEAKERS 2W (x2) POWER ECO MODE (CONSERVE) 10.3W ECO MODE (OPTIMIZED) 11.7W CONSUMPTION (TYPICAL) 13.7W CONSUMPTION (MAX) 16.5W VOLTAGE AC 100-240V (universal), 50-60Hz STAND-BY 0.5W POWER SUPPLY Internal ADDITIONAL HARDWARE KENSINGTON LOCK SLOT 1 WEBCAM 2MP OPERATING CONDITIONS ViewSonic VG2440V 24” Monitor TEMPERATURE 32-104º F (0 – 40º C) HUMIDITY (NON-CONDENSING) 20-90% VIDEO SIGNAL ViewSonic VG2440V 24” Monitor FREQUENCY HORIZONTAL 15 ~ 90 KHz FREQUENCY VERTICAL 49 ~ 75 Hz VIDEO INPUT DIGITAL SYNC TMDS for HDMI (v1.4), PCI-E for DisplayPort ERGONOMICS ViewSonic VG2440V 24” Monitor HEIGHT ADJUST 130 mm / 5.1 in SWIVEL 60º PIVOT (RIGHT/LEFT) 90º / 90º TILT (FORWARD/BACK) 5º / 40º WEIGHT (IMPERIAL) NET (LBS) 13.3 NET WITHOUT STAND (LBS) 7.9 GROSS (LBS) 19.2 WEIGHT (METRIC) NET (KG) 6.0 NET WITHOUT STAND (KG) 3.6 GROSS (KG) 8.7 DISPLAY DIMENSIONS (IMPERIAL) (WXHXD) PACKAGING (IN.) 24.0 x 15.9 x 8.3 PHYSICAL (IN.) 21.6 x 16.0~21.1 x 8.1 PHYSICAL WITHOUT STAND (IN.) 21.6 x 13.8 x 2.0 DISPLAY DIMENSIONS (METRIC) (WXHXD) PACKAGING (MM) 609.0 x 405.0 x 210.0 PHYSICAL (MM) 549.0 x 407.0~537.0 x 206.0 ViewSonic VG2440V 24” Monitor PHYSICAL WITHOUT STAND (MM) 549.0 x 352.0 x 50.0 GENERAL ViewSonic VG2440V 24” Monitor REGULATIONS cTUVus, FCC-B, ICES003, Energy Star Certified, EPEAT Certified, MX-CoC, Mexico Energy PACKAGE CONTENTS VG2440V, Power Cable, HDMI Cable, USB Type B Uplink Cable, 3.5mm Audio Cable, Quick Start Guide RECYCLE/DISPOSAL Please dispose of in accordance with local, state or federal laws. Specifications: Specifications : Refresh Rate 75 Brand ViewSonic Screen Size 24 Inches Hardware Interface VGA, DisplayPort, HDMI, USB 3.2 Gen 1 Connectivity Technology VGA, USB, DisplayPort, HDMI 3 Years Warranty manufacturer link
HP E27q G5 QHD Monitor Firstly, the HP E27q G5 monitor is your gateway to an enhanced visual experience without breaking the bank. Whether you’re working, gaming, or indulging in multimedia content, this monitor has you covered. Secondly, one of the standout features of the HP E27q G5 is its Quad High Definition (QHD) display. This means you can enjoy crystal-clear visuals with sharp details for a wide range of tasks. The 27-inch screen size provides a generous canvas for all your computing needs, from productivity to entertainment. You get more screen real estate to enhance your multitasking capabilities. With a sleek and modern design, the E27q G5 monitor is a stylish addition to any workspace. It effortlessly blends with your existing setup, adding a touch of sophistication. Adjusting the monitor to your desired height is easy, thanks to its ergonomic design. Achieve the perfect viewing angle for comfort during extended work or gaming sessions. Connecting the HP E27q G5 is a straightforward process, and it’s compatible with standard ports for quick setup. No need to deal with complicated installation procedures. This monitor is a cost-effective choice for professionals, gamers, and multimedia enthusiasts. It offers top-notch features without straining your budget, making it an excellent investment. Specifications: QHD (2560 x 1440) 1000:1 5ms GtG (with overdrive) IPS
The ViewSonic VX2779A-HD-PRO 27″ FHD 240Hz Gaming Monitor delivers ultra-smooth visuals for fast games. It features a 27-inch IPS panel that offers wide viewing angles and rich color. Moreover, the high 240 Hz refresh rate helps motion look fluid and responsive in action titles. This gaming monitor supports Full HD 1920×1080 resolution for crisp images and clear details. Additionally, the 1 ms response time (MPRT) reduces blur and ghosting in fast scenes. Adaptive sync tech like AMD FreeSync and NVIDIA G-SYNC compatibility helps cut screen tearing and stutter. The ViewSonic VX2779A-HD-PRO also includes HDR10 support to boost contrast and color depth for games and videos. Furthermore, anti-glare coating and low blue light help reduce eye strain during long play sessions. Multiple ports make setup easy with two HDMI and one DisplayPort connection. This monitor works well for competitive gaming, esports, and general entertainment. Therefore, it suits both PC gamers and console players. Finally, it combines speed, quality visuals, and versatile connectivity for everyday gaming use. Specifications: 27″ IPS panel with 1920×1080 Full HD resolution 240 Hz refresh rate and 1 ms (MPRT) response time HDR10 support and wide 178° viewing angles Connectivity: 2× HDMI 1.4 + 1× DisplayPort 1.4 Eye-care features: anti-glare, low blue light, and flicker-free
