2.4 G Wireless Mouse is good control and sensitive. ... in the work mode, if not detected, the receiver, Mouse will automatically turn off Sensor, into more ... in 2 minutes if it detects to the receiver, Mouse will automatically return to work mode, ... the excess 2 minutes have not yet detected, the receiver, Mouse into shutdown mode.General situation: 1 AA ... current is less than 40mA 2.4G Wireless Mouse