Specification: Type: Arc Wireless Mouse Color: Black, Blue, Red, White, Silver, Purple Size: About: 111mm*58mm*35mm/4.37"*2.28"*1.37" Power: 2xAAA batteries (not included) 2.4G Specifications: Re: 2402MHz-2480MHz Radio frequency operation channel: 16, automatic frequency hopping Rated voltage: 1.5V/3.0V Rated current: 7.5-14mA. maximum. Acceleration: 28 ft/s USB: Version 1.1/2.0 System Requirements: For Windows 2000/XP/Vista/Linux/Win 7/MAC OS One USB available port. Package Included: 1 x 2.4Ghz Foldable Wireless Optical Mouse for Laptop/PC 1 x USB wireless receiver (hidden in mouse) notes: 1. Due to manual measurement, measurement methods and tools, please allow slight dimensional deviations. 2. Due to different shooting light and monitor, the picture may not reflect the actual color of the product. Thanks for your understanding. The mouse adopts the USB receiver mouse button, which is easy to install and can be played by inserting the USB receiver. 2.4GHz digital wireless transmission, the operating distance can reach 10 meters. 1000dpi-1200dpi-1600dpi e Cursor speed adjustable. Ergonomic design, comfortable grip. The foldable design is convenient to carry around. No coding required, plug and play. Intelligent power saving technology, one alkaline battery can last up to six months. Sleep level control, no connection sleep more power saving. Built-in mouse memory, no need to recode after replacing the battery.