Feature:1. The left and right buttons adopt a silent and micro-motion design, ergonomic shape design bring an comfortable grip2. 250Hz high return chip bring faster data transmission. Innovative red light technology, energy saving and power saving3. Using the latest 2.4G wireless frequency hopping technology, possess super anti-interference ability4. Intelligent adjustment of up to 1600DPI, which realize rapid cursor positioning5. Built‑in memory, no need to code with smart connection. Adopt for Nano receiver, plug and play, easy to carrySpecification:Item Type: Wireless MouseType: Optical mouseConnection with Computer: WirelessOptical Resolution: 1600dpiNumber of Keys: 6 (keys)Interface: USBWireless Transmission Frequency: 2.4GHzResolution: Adjustable three levels and belowOperating Distance: Approx. 10meter / 32.8ftWorking Method: PhotoelectricWheel Direction: Four-way wheelBattery Specification: 2 x AAA batteries (not included)Size(LxWxH): Approx. 103.5 x 70.5 x 38.6mm / 4.1 x 2.8 x 1.5in.Package List:1 x Mouse1 x USB head