Material: Plastic Color: as shown in the picture Size: 140*20*15mm 2.4G wireless technology with cellular carrier frequency 2402MHz-2480MHz and 16 automatic frequency hopping wireless working channels. Transmission distance up to 10 meters. Rated working voltage: 3V; Rated working current: 15mA. Power supply mode: 1 AAA battery (battery not included). Features sleep mode when battery is low. 3-level CPI adjustment: 800/1200/1600. Miniature wireless receiver supports Windows 7/8/10, Android, Linux, Mac operating systems. 2-in-1 design: functions as both an ergonomic mouse and a presenter, allowing free manipulation of mouse pointer and PPT without staying in front of the computer. Ergonomic design helps prevent shoulder, forearm, and arm muscle pain. Multi-functional for internet surfing, website browsing, PowerPoint presentations, business meetings, and free work. Package Contents: 1 * Mouse Pen, 1 * USB Receiver