The ONLEE PRO ergonomic mouse operates either via Bluetoothâ„¢ or 2.4Ghz. It has a 300 mAh battery that is rechargeable using the supplied USB-A / USB-C cable. Its resolution is adjustable from 800 to 1600 DPI in order to refine the speed of cursor movement. ONLEE PRO is a silent 6-button mouse. It has a dual Bluetooth 5.0 connection to store two separate devices but can also connect to 2.4Ghz using the mini receiver provided.