Specification: Material: ABSKey life: 5 million times Wireless distance: 10mWork: PhotoelectricityBattery capacity:500mAhChargeableCharging cable length: 25cmProject Type: Ergonomics Optical MouseOperation Mode:Opto-electronic Rated voltage / current: 3.7V / 8mAPower Type:RechargeableType:2.4Ghz Wireless+BluetoothDual ModeButtons: 2 Buttons and 1 Round (Middle Mutton) and Mouse dpiSystem requirements: Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista Mac OS or latest.(Apple mobile devices are not supportedProduct weight: 71gItem size: 11.3 *5.8 * 2.6cmPacking weight: 92g Package Size:12.7 *7.7* 3cmPackage List:1 * Mouse (Dual Mode: Bluetooth + 2.4 G wireless)1 * USB Receiver1 * USB Charging Cable(25cm)1 * English manualHow to use:For 2.4G wireless mode:Turn the power switch to 2.4G mode >Mode indicator red light> Plug receiver plugged into computer USB port> ConnectedFor Bluetooth mode:1. Switch the power switch to Bluetooth mode > press and hold the dpi button for 5 seconds (the red light will be on at the bottom of the mouse) Add device > Start searching for device2. Search for the Bluetooth device (Bluetooth_Mouse 5.0), click Next to connect, and the connection will work normally. If the display is not successful, please reconnect. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.