Features: Brand New & High Quality.2.4GHz Wireless technology to provide furthest 10 meters from the operation.Fold up, easy to carry.Reliable and receiver-free wireless connection.Mini receiver plug and play.Features comfortable, ergonomic design.16 wireless working channels, automatic frequency jumping.Low-voltage alarming function.Mouse built-in memory, the replacement of the batteries do not have re-code.Powered by 1 x AA battery.Size: 11.2cm x 5.8cm x 2cm.Color: black, white, pink, blue.Package Included: 1 x USB Wireless Optical Mouse1 x USB Wireless Receiver