One mouse for Two devices: 2.4G wireless for Desktop, and Bluetooth 4.0 for laptop, 10m transmit distance. Free switch to control two devices, working together.
Mode switch: Red light for 2.4G mode and Blue light for Bluetooth. Short -press Mode Key at the bottom, slow flashes means mode switch, and long-press, quick flashed means paring mode.
Built-in 750mah built-in lithium battery, charged 2-2.5 hours for about 150 days office daily use and 45 days game play.