1Automatic sleep, power saving design, long lasting battery life, suitable for desktop computer. 2Lasting battery life up to 9 months (Note: battery life may vary depending on individual use habits) 3Stable and reliable wireless transmission. Reliable 2.4G wireless technology provides wireless connectivity up to 10m / 32.8ft. 4Supports for Windows/ XP (64) / vista/ for Windows 7, widely applications for computer use. 51Mbps Wireless data transfer rate, 1600DPi and come with receiver for convenient use. Condition: 100% Brand New Item Type: 2.4G Mouse Material: ABS Battery: 1 x AA (excluding) Wireless Data Transfer Rate: 1Mbps Frequency: 2402 MHZ to 2480 MHZ Channel: 16, automatic frequency hopping Rated Working Voltage: 1.5V Rated Working Current: 6mA Wireless Transmission Distance: Approx. 10m / 32.8ft Mouse DPL: 1600DPi System: Support for Windows 2000/ XP(64)/ Vista/ for Windows 7 1 x Mouse <br><br>1 x Receiver