... PCS Features:1, Using Bluetooth technology,10 meters distance usage.2, Designed for notebook computers. Built-in Bluetooth adapter,low pointt of ... to replace the battery on the Code.5, 2 AAA batteries ,recommended brand for more than 1000mAh battery.6, Intelligent sleep management ... ,Turn on the power supply switch ,holding the CONNECT key for 2 seconds, then the mouse will be in matching state.4 ...