Material: Plastic; Color: as shown in the picture; Size: 140*20*15mm. 2.4G wireless technology with carrier frequency 2402MHz-2480MHz, 16 automatic frequency hopping channels. Rated working voltage: 3V; Rated working current: 15mA. Transmission distance up to 10 meters. Three-level CPI adjustment: 800/1200/1600. 2-in-1 design: ergonomic mouse can also be used as a presenter, allowing free manipulation of mouse pointer and PPT without staying in front of computer. Multi-functional: suitable for surfing the Internet, browsing websites, PowerPoint presentations, business meetings and free work. Easy to use: insert batteries into the pen mouse, connect the USB receiver to computer. Powered by 1 AAA battery (not included); sleep mode available when battery is low. Compatible with Windows 7/8/10, Android, Linux, Mac operating systems. Package Contents: 1 * Mouse Pen, 1 * USB Receiver.