Non-slip, skid-proof rubber feet designed to perfectly fit MacBook Air models A1466, A1369, and A1370—restoring grip, stability, and protection for your laptop’s base. Keep your MacBook Air steady and scratch-free with these high-quality replacement rubber feet, engineered to match the original Apple design for MacBook Air models A1466 (2010–2017), A1369 (11″ 2010–2011), and A1370 (11″ 2011–2015). These skid-proof rubber feet provide excellent traction on desks, tables, and other smooth surfaces, preventing unwanted sliding during typing or use. Made from durable, soft-touch silicone-rubber material, they also help protect your laptop’s bottom case from scratches and reduce vibration noise. Each set includes all necessary feet (typically 5 per MacBook Air model) with pre-applied adhesive for easy, secure installation. The matte black finish blends seamlessly with your MacBook’s original aesthetic. Ideal for restoring worn, missing, or damaged feet—whether due to age, cleaning, or accidental removal—this is a simple, affordable way to maintain your MacBook’s functionality and appearance. Note: Surface must be clean and dry for optimal adhesion. For best results, gently warm the adhesive before applying.
WiWU A821CH 8‑in‑1 Stand & Dock – A foldable aluminum laptop stand with a built-in 8‑port USB‑C dock (two USB‑A, two USB‑C, HDMI 4K30, SD/TF, Gigabit Ethernet, PD 100 W).Enhances comfort, cooling, and functionality—perfect for decluttered, professional work setups. Model: WiWU A821CH Design: Sturdy aluminum alloy stand with foldable, portable design, hollow surface for cooling, and silicone pads to prevent slips Dimensions & Weight: Compact when folded (~400 g in aluminum) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Power Delivery: USB-C PD 3.0 supports up to 100 W—can charge a laptop while using other ports Connectivity: HDMI supports up to 4K@30 Hz; Ethernet up to Gigabit speed Stand Features: Detachable base—can use stand and hub together or separately, with adjustable ergonomic angles and vents for airflow Durability: Aluminum alloy with frosted texture, scratch-resistant finish, tested to executive standards
OEM-quality left and right loudspeaker replacement pair for MacBook Pro 14″ (Model A2442, 2021, M1 Pro/Max)—restores Apple’s high-fidelity six-speaker audio system with precise sound staging, rich bass, and clear highs. Compatible With: MacBook Pro 14-inch (2021, Model A2442) with Apple M1 Pro or M1 Max chip (Model Identifier: MacBookPro18,3 or MacBookPro18,4). Includes: Complete left and right speaker assemblies, each containing: Dual-driver units (force-cancelling woofers + tweeters) Pre-attached flex cables with OEM connectors Mounting brackets and acoustic seals Dual-driver units (force-cancelling woofers + tweeters) Pre-attached flex cables with OEM connectors Mounting brackets and acoustic seals Audio Performance: Matches Apple’s advanced six-speaker sound system with: Wide stereo separation High dynamic range Spatial audio and Dolby Atmos support (when paired with original logic board and firmware) Wide stereo separation High dynamic range Spatial audio and Dolby Atmos support (when paired with original logic board and firmware) OEM Build Quality: Precision-engineered housings with exact acoustic chambers, grille alignment, and cable routing—ensures zero rattling and full macOS audio calibration compatibility. Common Use Cases: Replaces speakers damaged by liquid ingress, physical impact, or internal failure (e.g., no sound, distorted audio, or imbalance between channels). Installation Note: Requires full bottom case and logic board disassembly. Speakers are secured with screws and acoustic adhesive. Highly recommended for certified Apple technicians or experienced professionals only due to complex internal layout and sensitivity of audio components. Important: This speaker pair is exclusive to A2442 (14″, 2021, M1 Pro/Max). Not compatible with 16″ MacBook Pro (A2485), 13″ models, or Intel-based MacBooks. This speaker pair is exclusive to A2442 (14″, 2021, M1 Pro/Max). Not compatible with 16″ MacBook Pro (A2485), 13″ models, or Intel-based MacBooks. Model Verification: Confirm your device via > About This Mac > Model Identifier (must be MacBookPro18,3 or MacBookPro18,4).
Genuine Apple sleep/wake sensor flex cable (Hall effect sensor) for MacBook Air 13.6″ (Model A2681, 2022, M2)—ensures automatic display sleep when the lid is closed and wake-on-open functionality. OEM part number 821-04129-02. Compatible With: MacBook Air 13.6-inch (2022, Model A2681) with Apple M2 chip (all colors: Silver, Space Gray, Starlight, Midnight). Apple Part Number: 821-04129-02 (exact OEM service part). Function: Contains the Hall effect sensor that detects the magnet in the MacBook Air’s display lid. This allows macOS to: Sleep the system when the lid is closed Wake instantly when opened Prevent false sleep/wake events during use Sleep the system when the lid is closed Wake instantly when opened Prevent false sleep/wake events during use Location: Mounted near the right side of the keyboard, adjacent to the battery and logic board. Common Failure Symptoms: MacBook doesn’t sleep when lid is closed MacBook wakes randomly in a bag “Lid closed” not recognized in macOS Requires manual sleep or power button use MacBook doesn’t sleep when lid is closed MacBook wakes randomly in a bag “Lid closed” not recognized in macOS Requires manual sleep or power button use Part Type: Flex cable with integrated Hall sensor—not just a cable, but a calibrated magnetic sensor module. Installation Note: Requires full bottom case removal and careful disconnection of the battery. The sensor is adhered near the I/O area—do not bend or puncture. Recommended for experienced technicians.
A well-equipped pre-owned Dell Latitude 5410 with 14" display, 10th Gen Core i5, 16GB RAM, and 512GB SSD—delivering strong performance, security, and portability for business and professional use.
Logitech C270 HD webcam — 720p USB camera with built-in mic and automatic light correction. Solid pick for video calls, remote work, or basic streaming. This is the Logitech C270 HD Webcam, a budget plug-and-play USB camera suited for everyday video calls. It doesn’t strive for professional streaming quality, but it reliably handles meeting needs, student calls, or backup cam duties. Key Features & Functionality Records video in HD 720p at 30 fps Fixed focus lens (no autofocus) Built-in mono microphone with noise reduction (captures voice clearly in standard environments) Automatic light correction (RightLight / similar tech) to adjust in low or uneven lighting Universal mounting clip: works on laptop lids, monitors, or can sit on a shelf USB 2.0 interface, 1.5 m (≈ 5 ft) cable length Technical Specifications Strengths & Limitations Pros: Reliable and easy to set up: plug and play Good for video calls in decent lighting Noise suppression in mic helps reduce background hiss Affordable alternative if your built-in camera fails Cons: Only 720p — not ideal for high quality streaming Fixed focus — manual adjusting can’t zoom/focus No privacy shutter (you may need stickers or external cover) Color and sharpness aren’t top tier under weak light
Genuine-spec touchpad flex cable for MacBook Pro 16″ (Model A2141, 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 16-inch (2019, Model A2141) with Intel Core i7/i9 processors (Model Identifier: MacBookPro16,1) (Note: A2141 is the non-base configuration of the 2019 16″ MacBook Pro—typically higher-end Intel models.) 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 coordinates, Force Touch pressure data, and haptic feedback signals—critical for macOS gestures (e.g., Force Click, three-finger lookup, pinch-to-zoom) and Taptic Engine responsiveness. OEM-Quality Construction: Replicated to Apple’s exact specifications—including cable length, connector pitch, EMI shielding, and bend radius—ensuring reliable signal integrity and long-term durability. Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised 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 compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full disassembly of the bottom case, speaker removal, and careful routing beneath the battery and logic board. Connectors use ZIF (Zero Insertion Force) sockets—must be aligned and latched gently. Recommended for certified or professional repair technicians only. Important: This is flex cable only—not a complete trackpad assembly. Must be used with the original or compatible A2141 trackpad and Taptic Engine. Not compatible with M1 MacBook Pro 16″ (A2485), 14″ models (A2442), or any MacBook Air. This is flex cable only—not a complete trackpad assembly. Must be used with the original or compatible A2141 trackpad and Taptic Engine. Not compatible with M1 MacBook Pro 16″ (A2485), 14″ models (A2442), or any MacBook Air. Model Verification: Confirm your device is MacBook Pro A2141 (16″, 2019, Intel) via > About This Mac > Model Identifier (should read MacBookPro16,1).
WiWU ZM‑901 – Sturdy foldable aluminum stand with adjustable angles and silicone pads, weighing just 900 g.Enhances posture, airflow, and workspace ergonomics while staying compact and travel-friendly. Model: WiWU ZM‑901 Material: Metal (aluminum/carbon steel) frame with silicone pads for grip Dimensions (Folded): 260 × 225.5 × 53 mm Package Size: 290 × 250 × 50 mm Net Weight: Approx. 900 g Compatibility: Fits laptops, tablets, and smartphones up to ~17 ” (some listings note 15.6″ limit, but device capacity varies) Features: Adjustable angle configuration, detachable foldable design for portability, silicone surface pads for anti-slip and vibration reduction Build & Design: Durable yet lightweight, crafted to enhance airflow and promote ergonomic posture
Used OEM Original Apple Logic Board Working, A1706 Late 2016 Mode 3.3 GHz i7 256gb 16gb RAM Tested using latest industry hardware diagnostic software, Fresh pull from full unit.
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A1706 – 2017 and A1989 – 2018/2019)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15″ (2017) – Model A1706 (Model Identifier: MacBookPro14,3) MacBook Pro 15″ (2018–2019) – Model A1989 (Model Identifier: MacBookPro15,2) ✅ Note: Apple used the same trackpad assembly and flex cable across both A1706 and A1989 15″ models—making this part interchangeable between them. MacBook Pro 15″ (2017) – Model A1706 (Model Identifier: MacBookPro14,3) MacBook Pro 15″ (2018–2019) – Model A1989 (Model Identifier: MacBookPro15,2) ✅ Note: Apple used the same trackpad assembly and flex cable across both A1706 and A1989 15″ models—making this part interchangeable between them. ✅ Note: Apple used the same trackpad assembly and flex cable across both A1706 and A1989 15″ models—making this part interchangeable between them. Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable connecting 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 in: Cable length and routing Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing 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 compromised 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 compromised 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.
Compact and stylish with a zinc alloy shell, the SatcOp 8‑in‑1 USB‑C Multiport Dock delivers essential ports—Ethernet, HDMI, USB, card readers, and charging—in one portable adapter. Ideal for powering your laptop while expanding connectivity on the go. 🖥️ HDMI Port – Connect to external displays in Full HD or 4K (depending on your host device). 🌐 RJ45 Ethernet Port – Provides stable wired internet access with gigabit-speed support. ⚡ USB-C PD Charging – Power your laptop while using other ports (up to 87W pass-through). 🔌 USB 3.0 & USB 2.0 Ports – Connect flash drives, external storage, keyboards, and mice. 💾 SD & TF Card Readers – Quick access to camera and device storage cards. 🧊 Material – Premium zinc alloy casing for durability and efficient heat dissipation. 💼 Design – Slim, lightweight, and perfect for travel, home, or office setups. 💻 Compatibility – Works with most USB-C laptops, including Windows, macOS, Chrome OS, and select Android tablets.
L12M4E01 L12L4A02 Battery for Lenovo G50 G50-70 G50-45 Z710 G400s S510p G510s G500s G40-70 G50-30,IdeaPad Z50,IdeaPad S510p Touch,IdeaPad G505s,IdeaPad S410p About this item This battery type: Li-ion; Voltage: 14.8V Capacity: 2600MAH; Cells: 4-cell;color: Black; 100% Brand New.Fit P/N L12L4A02, L12L4E01, L12M4A02, L12M4E01, L12S4A02, L12S4E01 Compatible Models: Relacement battery for lenovo G400s G40-30 G40-45 G405s G40-70 G40-70M G410s G50 G500s G50-30 G50-45 G505s G505s G50-70 G50-70A G50-70M G50-75 G50-80 G510s G510s S410p S410p S435 S510p S510p Z40 Z40-70 Z40-75 Z50 Z50-70 Z70 Z70-70 Z70-80 Z710 Compatible P/N: Lenovo battery L12L4A02 L12L4E01 L12M4A02 L12M4E01 L12S4A02 L12S4E01 121500171 121500172 121500173 121500174 121500175 121500176 90202869 All FTYTEN products are 100% Brand New; Grade A Li-ion battery cells ensure fast charges; Rigorous quality control; Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety.
Replacement Keyboard for MacBook Pro 13" inch A1706 & MacBook Pro 15" inch A1707 Touch Bar (for Late 2016 mid 2017 Year) Replacement Keyboard for MacBook Pro 13″ inch A1706 & MacBook Pro 15″ inch A1707 Touch Bar (for Late 2016 mid 2017 Year) 【Compatibility】This replacement keyboard is Compatible with original MacBook Pro 13″ inch A1706 & MacBook Pro 15″ inch A1707 Touch Bar (for Late 2016 mid 2017 Year) Laptop. 【Compatible Part Numbers】661-06377 【Compatible MBP Numbers】A1706 series :MacBook Pro 13 inch 2017 MacBookPro14,2 & MacBook Pro 13 2016 MacBookPro13,2 MNQF2LL/A MNQG2LL/A MLH12LL/A MLVP2LL/A etc A1707 series:MacBook Pro 15 inch 2016 MacBookPro13,3 & MacBook Pro 15 inch 2017 MacBookPro14,3 Release June 2017 MPTR2LL/A MPTU2LL/A MPTT2LL/A MPTV2LL/A Release October 2016 MLH32LL/A MLW72LL/A MLH42LL/A MLW82LL/A
LENOVO 20V/4.5A USB PIN Laptop Charger for Lenovo Thinkpad Compatible Part NO.: 45N0236, 45N0237, 45N0238, 45N0239 0B46994, 0B46995, 0B46996, 0B46997, 0B46997, 0B46998, 0B469990B47000, 0B47001, 0B47002, 0B47003, 0B47004, 0B47005, 0B47006
WiWU 14-inch & 15.6-inch Minimalist Laptop Sleeve for Macbook Air 2020 Protective Case Minimalist Laptop Sleeve Water resistant polyester+ Fax fur lining Ultra slim design with front pocket Including packing weight:14inch 280g/15.6inch 320g WiWU 14-inch & 15.6-inch Minimalist Laptop Sleeve for Macbook Air 2020 Protective Case
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A2941, 2023, Apple M2)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15-inch (2023, Model A2941) with Apple M2 chip (Model Identifier: MacBookPro19,1) 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 compromised 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 compromised 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.
Specification Details Specification Details Input/Output Other Sound Mode Standard Mode Category Speakers Use Home Tweeter Type Cone Control Volume Control, Playback Bluetooth Version 5.0 Input Power (W) <25 W Active Noise Cancellation Passive Voice Control No Output Power Other Waterproof Yes Support APP No Support Memory Card Yes Material Plastic Playback Function MP3, FLAC, ALAC Remote Control No Support Apt-X No Intelligent Personal Assistant Apple’s Siri Display Screen No Built-in Microphone Yes Audio Crossover Full-Range Number of Loudspeaker Enclosure 1 Power Source DC, Battery, USB PMPO 40 W Channels 2 (2.0) Feature Phone Function, Play Video Battery Yes Communication Bluetooth, Audio Line Speaker Type Portable Cabinet Material Plastic Brand Name Bigmzpai Origin Mainland China Bluetooth Version V5.0 Waterproof Level IPX6 Battery Capacity Power Battery 10000mAh Brand YIBOLANG
Genuine-spec touchpad flex cable for MacBook Pro 16″ (Model A2159, 2019, Intel)—essential for restoring full Force Touch functionality, haptic feedback, and precise trackpad responsiveness during repair or replacement. Compatible With: MacBook Pro 16-inch (2019, Model A2159) with Intel Core i7/i9 processors (Model Identifier: MacBookPro16,1). Part Type: Touchpad flex cable only—does not include the trackpad, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits touch input, Force Touch pressure data, and haptic feedback signals—critical for macOS gestures (e.g., Force Click, three-finger swipe, pinch-to-zoom) and Taptic Engine operation. OEM-Quality Build: Matches Apple’s original flex circuit in length, connector pitch, shielding, and bend radius—ensures reliable signal integrity and durability under repeated use. Common Use Cases: Replacing a torn, frayed, or corroded original flex cable Completing a trackpad replacement when the original cable is damaged Fixing intermittent or unresponsive trackpad behavior caused by cable failure Replacing a torn, frayed, or corroded original flex cable Completing a trackpad replacement when the original cable is damaged Fixing intermittent or unresponsive trackpad behavior caused by cable failure Installation Note: Requires full bottom case removal and careful routing beneath the battery and logic board. Connectors use ZIF (Zero Insertion Force) sockets—must be properly aligned and latched without force. Recommended for certified or experienced technicians only.
Genuine-spec US layout (QWERTY) black keyboard replacement for MacBook Air 13.6″ and 15″ models (2023–2025, M2/M3/M4 chips)—featuring Apple’s Magic Keyboard with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) Keyboard Layout: Standard US English (QWERTY) with wide Enter key, dedicated left/right arrow keys in inverted-T layout, and full function row—matches Apple’s original US configuration. Design: Apple’s Magic Keyboard with scissor-switch mechanism—providing quiet, stable, and responsive typing with 1mm key travel and enhanced durability. Features: Integrated backlighting for low-light use, ambient light sensor compatibility, and OEM-style flex cable for direct logic board connection. Color: Sleek black keycaps—ideal for Space Gray and Midnight finishes, and visually consistent across all color variants. Precision Fit: Engineered to exact Apple specifications for alignment, key spacing, and mounting—ensures seamless integration into the original top case. Installation Note: The keyboard is factory-glued into the top case. Replacement requires full disassembly, careful removal, and professional-grade re-adhesion. Recommended for experienced technicians only.
A1932 A2179 A1965 Battery for MacBook Air 13″ Retina (2018 2019, Early 2020) EMC 3184 3302 MRE82 MRE92 MVFH2 MWTJ2 MVH22 MVFM2 MVFK2 MREE2 MREC2 MREA2 MREF2 MUQT2 MUQU2 MacBookAir8,1 8,2 9,1 📄【Specification】Voltage: 11.4V. Capacity: 49.9Wh 4379mAh. Battery Type: Li-Polymer. Condition: Brand new, from high quality materials, top circuit boards and smart chip. 🔋【Replace Part Number】A1965 A1932(EMC 3184) A2179(EMC 3302) 3ICP4/63/119 MacBookAir8,1 MacBookAir8,2 MacBookAir9,1. 💻【Compatible Models】Only fit for MacBook Air 13″ (Model A1932 & Model A2179) Release 2018 2019 2020, fit for MRE82LL/A, MVFH2LL/A, MVFM2LL/A, MVFK2LL/A, MVFJ2LL/A, MVFN2LL/A, MVFL2LL/A, MREE2LL/A, MREC2LL/A, MREA2LL/A, MREF2LL/A, MRE92LL/A, MWTJ2LL/A, MVH22LL/A, MVH52LL/A, MVH42LL/A, MWTL2LL/A, MWTK2LL/A. Please kindly check the model number at the bottom of your laptop (A****). NOT FIT FOR MODEL A2337. 💻【ANTIEE Promise】Each products has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety. About 500 recharge cycles over the life.
