Tip:Scientific ergonomic design maintains healthy wrist and arm positions to achieve smoother movement and reduce overall stress.How to use it:A. 2.4Ghz Mode:Switch to "ON/OFF" button to right.And Plug the receiver into the USB port or use a USB C adapter to plug into the type c port of your computer, Then you can use the mouse in 2.4GHz Mode.B. Bluetooth Mode:Switch on Bluetooth on your device and power on the mouse. Press the DPI Button or Press Left,Roller and Right 3 Buttons together for 5 seconds.When the mouse name coming up on the device.Click it and it will be connected.Note:System Requirement: Windows 8/10, Android 4.2 and above,Mac & IOS 10.10(Compatiable with 4.2BLE?4.1BLE?4.0BLE or earlier)Package Included:1* Dual Mode Mouse1* Charging Cable1*USB Receiver (under earth the mouse)1*Type C AdapterNote:1. It's out of power if the mouse cursor moves slowly or stop moving. Please recharge it. Note: Please do not charge the mouse with mobile phone charger.2. Please charge the mouse for 2 hours before the first time to use it. The blue light beside the scroll wheel will be on while charging, and then goes off when the mouse is fully charged.3. Not all computers support two modes. For example, Win 7 system does not support Bluetooth mode.4. There is memory function on Bluetooth Type Mouse.When the mouse has connected another device,and now you would like connect the device not connected with the mouse last time, it should re-connect with the device.5. If choosing Bluetooth connecting way, don’t insert USB receiver to the device you would to connect.Otherwise,it will choose 2.4G connecting way automatically.