Features 1. The left and right buttons have a silent micro-movement design, a 250Hz high-return chip, and data transmission is faster. 2. Uses 2.4G wireless frequency hopping technology, super anti-interference capability. 3. Ergonomic shape design, comfortable grip, intelligent adjustment up to 1600DPI, fast cursor positioning. 4. Innovative red light technology, energy saving and power saving, built-in memory with smart connection. 5. The receiver is plug and play, convenient to use and with good performance. Specification Item Type: Wireless Mouse Type: Optical Mouse Connection to computer: Wireless Optical resolution: 1600dpi Number of keys: 6 (keys) Interface: USB Wireless transmission frequency: 2.4GHz Resolution: Adjustable 3 speeds and below Working distance: Approx. 8 meters / 26.2ft Working method: Photoelectric Wheel direction: Four-way wheel Battery specification: 2 x AAA batteries Packing list: 1 x Mouse 1 x USB receiver Package list 1 x Mouse 1 x USB receiver