Dual Wireless Mouse (Bluetooth 5.1 + USB 2.4GHz): The dual mode wireless mouse allows you to freely switch between two devices with one mouse just by a simple switch. 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. Compatibility: 2.4GHz mode works with laptop, desktop or other devices with USB port or Type-C Connection. Just plug in the USB receiver to play directly. Bluetooth mode works with Windows/Android/Mac OS system. Note: BT5.1 system requirements: Windows 8.0, Windows 10 or above; MacOSX 10.10 or higher; iPad OS 13 or later/Android 5.0 or later. Please check or update the operating system before using. Rechargeable and Energy-Saving Design: The mouse has built-in safe and long-lasting battery, attached charging cable, no need to replace the battery. Automatic energy saving technology. The mouse goes into sleep mode after 10 minutes of inactivity to save power and ensure long-term use. Click any key to wake up. Silent click and adjustable quick response function: Left and right button design reduces 90% of noise. It is an ideal mouse for offices, libraries and other places where quiet is required. 3-level adjustable DPI between 1000, 1200 and 1600 to meet different needs. Ergonomic design 2022: Ergonomic design, slim, light, comfortable, wireless mice and convenient to carry.