Material: plastic Color blue Size: 140 * 20 * 15mm Cellular carrier frequency: 2402 MHz-2480 MHz Wireless working channels: 16, automatic frequency hopping Rated operating voltage : 3V Rated operating current: 15 mA Power supply mode: Battery 1 AAA battery (without battery) Specifications: 2.4G wireless mouse, transmission distance 10 meters 3-speed CPI setting: 800/1200/1600 Micro radio receiver Support system Windows 7/8/10 / Vista / XP / 2000, Android, Linux, Mac OS. Scope of delivery: 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 stand in front of a computer or laptop. Multifunction: The notebook mouse offers different functions than the conventional wireless mouse. You can use a mouse on the Internet surf, browse websites, talk on 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 an AAA battery (not included). When the battery is low, you can switch to energy saving mode. Compatible operating system: Windows 7/8/10 / Vista / XP / 2000, Android, Linux, Mac OS. Ergonomic design can shoulder, tease, arm - and prevent forearm muscle pain.