DUAL MODE BLUETOOTH MOUSE: BT 5.0+2.4G connection, easy switch to control two devices by a click the button.TWO MODEMODE A: Plug the USBreceive into the USB Port,turn to mouse switch frOM OFF to 2.4G . MODE B: Bluetooth 5.0 Turn mouse switch from OFF to BT5.0 press the pairing key 2-3 seconds computer bluetooth find out ROTM-0711 Mouse and pair it.Cordless mute Mouse:2.4GHz wireless transmission technology provides a powerful and reliable connection up to 10m. the mouse features 90% noise reduction, which makes it an ideal silent wireless mouse for office, conference room, cafe, library, bedroom, help you concentrate on your work, study without disturbing others besides you. Note: dpi button is non-silent.'3 Kind Of DPI Adjustable: 800/1200/1600 DPI resolutions (Default 1600). Easily adjust DPI button to instantly match mouse speed to different working scenarios with DPI button on the top of the wireless mouse. A mouse suitable for daily office, home or design, business and travel work.Widely Compatibility:The 2.4 GHz/BT5.0 wireless mouse can well compatible with: Windows 7-10 / XP, Vista 7-2000 Server, Linux & Mac OS X. Bluetooth mode supports Windows 8-10, iPad/iPhone iOS 13 and above, above system.. 2.4GHz model works with PC, laptop and any device having USB port by just plug in the USB receiver.Note: The USB receiver is stored in the battery compartment of the mouse.Energy-saving Comfortable Design: It takes only 2 AA battery but NOT INCLUDED. And the wireless mouse will turn to sleep mode in 10mins of inactivity for energy saving, can be easily activated by clicking any buttons.There is a OFF button which enables you to turn off the mouse for energy saving.Symmetrical Design makes it convenient for both left and right hands, streamline shell is very comfortable to use it all day.