Specification： Product name: wireless arc mouse Material: ABS Color: white, gray, gold, blue, silver, purple Size: 100-120mm Radio frequency: 2402mhz-2480mhz RF working channel: 16 Automatic frequency hopping rated voltage: 1.5V / 3.0V Reted Current: 7.5-14MA Maximum acceleration: 28ft / sec. USB: Version 2.0. Battery: not included Features: The wireless arc-shaped foldable mouse is simple and convenient to use, code-free design, plug and play, and the battery can be automatically unpaired after removing the battery. Energy-saving non-bright design, intelligent power supply, multiple low-power mode design, saving battery power. The mouse has a refresh rate of 125MHz, smooth use, no delay, using low-light positioning technology, accurate positioning. Using 2.4G wireless RF transmission technology, the transmission power is 0dB, the receiving sensitivity is -98dB, and the open straight line transmission distance is greater than 15 meters. The power consumption of the mouse is less than 11 mA when moving at full speed. The mouse can detect whether the computer is turned off, and automatically enters low power consumption when the computer is turned off. At this time, the current is less than 50 mA. Packing list: 1 x wireless mouse Notice: Due to manual measurement, there may be slight dimensional deviations. Please allow chromatic aberration due to the different shooting light, angle, and monitor. Ergonomic Mouse: Fits hands curve, arc design. Takes small space after rotate, lightweight and mini compact design occupies less space of your desk. A perfect fit for your hand and your mobile lifestyle High Performance & Quiet Operation: Upgraded optical sensor, smooth and fast response offer you a better on-line time. Left and right buttons silent design make you work or play in a quiet environment, won’t disturb others when you at home or in the office Energy-saving: Built-in battery, easy to charge by micro usb cable, no more need for extra AAA battery, can be charged by computer, power bank, adapter. Can be used 15 hours continuously after full charged. Wide Compatibility: Passed 50,000,000 times keystroke test to guarantee extra durability. Supports Windows 7/8/10/XP, Vista 7/8 and Macbook Mac OS Linux etc. Fits for desktop, laptop, PC, Macbook and other devices.