Material: plastic Color: blue Size: 140*20*15mm Cellular carrier frequency: 2402MHz-2480MHz Wireless working channels: 16, automatic frequency hopping Rated operating voltage: 3V Rated operating current: 15mA Power supply mode: battery 1 AAA battery (without battery) Specifications: 2.4G Wireless mouse, transmission distance 10 meters 3-speed CPI adjustment: 800/1200/1600 Micro wireless receiver Support system Windows 7/8/10/ Vista/ XP/ 2000, Android, Linux, Mac OS. Package Contents: 1 * Mouse Pen 1 * USB Receiver Wireless Pen Mouse + Presenter: With its 2-in-1 design, the ergonomic mouse can also be used as a presenter. With a mouse, you can freely manipulate the mouse pointer and PPT without having to constantly be in front of a computer or laptop. Multifunction: The notebook mouse offers different functions than the traditional wireless mouse. With the wireless PC mouse, you can surf the Internet, browse websites, talk via PPT, hold business meetings and work freely. Easy to Use and Energy-Saving: Just insert the battery into the pen mouse and then connect the USB receiver to the computer. The computer mouse pen is powered by one AAA battery (not included). When the battery is low, you can switch to sleep mode. Compatible OS: Windows 7/8/10/Vista/ XP/ 2000, Android, Linux, Mac OS. Ergonomic design can prevent shoulder, tease, arm and forearm muscle pain."