1.[Dual Mode Wireless Mouse(Bluetooth 3.0+Bluetooth 5.2 + USB 2.4GHz)]The dual mode wireless mouse realizes switch ly between two devices with one mouse only by simply toggle switching. It can be connected to one device via Bluetooth and to another device via a 2.4GHz USB receiver. Note: Bluetooth mode and 2.4G mode cannot be used at the same time. (The default mode is BT 3.0 and for it to work in BT 5.2 there is a need also to keep pushing blue button. Then it shows as BT 5.2 mouse) 2.[Compatibility]2.4GHz mode works with laptop, desktop or any devices with USB port or type-c port, Just plug in the USB receiver to play directly. Bluetooth mode works with Windows/ Android/ MAC OS system. Note: BT5.1system Requirement: Windows 8.0, Windows 10 or later; MacOSX 10.10 or later; iPad OS 13 or later/ Android 5.0 or later. Please check or update the operating system before use. 3.[Rechargeable & Energy Saving Design]The mouse built-in and durable rechargeable battery, Attached charging cable, without the need to replace the battery. Auto energy saving technology, The mouse will go to sleep after 10 minutes of inactivity to save power and provide long-term use. Click any button to wake up. 4.[Silent Click & Adjustable Quick Response Function]The left and right button mute processing design reduces 90% of noise. It is an ideal mouse for offices, libraries and other places where quiet is required. 3-Level adjustable DPI among 1000, 1200 and 1600 to meet different needs.