A-001-2.4G Adopt wireless 2.4GHz technology, reach up to 15m operation distance ->62.5Kbps bidirectional wireless connectivity ->Less than 4ms typical latency ->Low battery current consumption: 10mA/hour ->Interference avoidance technology for robust operation in close proximity of 2.4GHz ->2 programmable hot keys on top of mouse, 38 different functions to choose from ->Dimensions (L x W x H): 119*60*35mm