Feature:1. The left and right buttons adopt a silent micro-motion design, 250Hz high-return chip, and data transmission is faster.2. Adopt 2.4G wireless frequency hopping technology, super antiinterference ability.3. Ergonomic shape design, comfortable grip, intelligent adjustment of up to 1600DPI, rapid 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 MouseType: Optical mouseConnection with Computer: WirelessOptical Resolution: 1600dpiNumber of Keys: 6 (keys)Interface: USBWireless Transmission Frequency: 2.4GHzResolution: Adjustable 3 speed and belowOperating Distance: Approx. 8meter or 26.2ftWorking Method: PhotoelectricWheel Direction: Four-way wheelBattery Specification: 2 x AAA batteriesPacking List: 1 x Mouse1 x USB Receiver.Package List:1 x Mouse1 x USB ReceiverNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.