1. Emphasizes high-speed performance (3000FPS refresh rate), ideal for portable use. 2. Multi-OS Support: Universally compatible with mainstream operating systems, including niche Linux distributions. 3. User-Friendly Indicators: Clear LED alerts for charging/data transfer, enhancing usability. 4. TF Card Functionality: Unique 2TB storage support expands utility beyond standard mouse functions. 5. Ergonomic Design: Compact size (7.8cm length) suits small hands or mobile work scenarios. Product Name: M109 Wireless Mouse with TF Card Reader Operating Mode: BT5.1 Connection Chip: PixArt 3065 Polling Rate: 250Hz Speed: 28 inch/s Refresh Rate: 3000FPS Acceleration: 10G Resolution: 800/1200/1600 Number of Buttons: 4 Keys Button Lifespan: 3 million clicks (silent switches) Material: ABS Voltage/Current: 5V/500mA Operating Distance: 10M Battery Capacity: 120mAh lithium battery Charging Cable Length: 20cm TF Card Read/Write Speed: 20MB/s (Supports up to 2TB capacity) Data Transfer Indicator: Bluetooth indicator flashes during data transfer. Re-pairing: Press and hold the sensitivity switch for 2 seconds to re-pair via Bluetooth. Compatible Systems: for Windows, for MacOS, Linux, for iOS, for Android, and other Bluetooth-enabled devices with the latest systems. Precautions: 1:Charging:Use a computer's USB port for optimal charging. The green light illuminates while charging and turns off when fully charged. 2:Low Battery Alert:If cursor movement lags, check battery level and recharge promptly. 3:Connection Issues: Ensure the power switch is "ON" or restart pairing mode via the sensitivity switch. Color: A:Gray Material: plastic Package Contents: 1 x Wireless Mini Mouse Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.