Bluetooth / 2.4GHz, Switch up to 3 Devices, Desk Air, Silent Clicks, 2000 DPI 4-Level Adjustable , Nano Receiver, 4 Types Screenshots, Rechargeable Design, On / Off Power Switch, Connection: Bluetooth / 2.4GHz, Up to 3 Devices: Bluetooth x 2, 2.4G x 1, Sensor: Optical, Distance: 5~10 m, Buttons: 7, Report Rate: 125 Hz, DPI: 1000-1200-1600-2000, System: Windows / Mac / Chrome OS / Android...