1[2.4GHz]: The optical pocket pen mouse uses 2.4GHz wireless connection technology, with bluetooth wireless transmission, and the distance up to 393.7in. 2[Ergonomic Design]: The wireless mouse pen adopts the ergonomic design, effectively reduces the pressure when the button is triggered, feel comfortable and not easy to produce fatigue. 3[200mAh Lithium Battery]: The handwriting mouse built in 200 mAh large capacity rechargeable lithium battery, recyclable charging, environmental protection and convenient. 4[High Compatibility]: The stylus mouse is compatible with various devices, suitable for laptops, tablets, smart phones, for Android phones and tablets and for WIN system with Bluetooth. Do not support for IOS. 5[Optical Sensor Tracking]: The wireless mouse pen uses optical sensor tracking technology, accurate movement, high sensitivity, coherent writing, quick response and no delay. 6[2 Modes]: The bluetooth mouse pen has two modes, can switch between desktop mode and air mode, with a middle button function, suitable for drawing CAD people. Item Type: Mouse Pen Material: ABS DPI: 1200 Number of Buttons: 4 Wireless Carrier Frequency: 2402MHz-2480MHz Wireless Working Channels: 16, Automatic Frequency Hopping Rated Operational Voltage: 3V Tracking Systems: Optics Rated Operational Current: 15mA Maximum Acceleration: 14 Inches per Second Battery Type: Lithium Battery Battery Capacity: 200mAh(included) 1 x Mouse Pen 1 x USB Cable 1 x 2.4G Receiver 1 x User Manual