describe1 With dual-mode connection, Bluetooth wireless 4.0 brings fast response, precise movement, stable connection and smoother tracking. The Bluetooth/2.4GHz wireless mouse can work on two devices, one connected via bluetooth and the other via a 2.4GHz USB receiver. You can switch modes between the two devices by simply switching. With just one mouse, you can freely switch and control two devices, from desktop to tablet, from laptop to Mac, 3 rechargeable optical wireless mouse built-in durable 450mAh lithium rechargeable battery, which can last for up to 500 hours, long battery life Thanks to intelligent auto-sleep (8 minutes of inactivity) and wake-up function, standby time of up to 6 months, energy saving and extremely low power consumption. 4 Portable Durable and Easy to Operate It can be easily stored in your laptop bag, perfect for travel. The Nano Receiver is stored on the back of the mouse using a high-precision optical chip. 5 Noiseless Clicks and 3 Adjustable DPI Nearly Silent Clicks give you an incredible user experience, quieter and easier to click, allowing you to focus on your work without disturbing those around you. 3 adjustable DPI levels (800, 1200, 1600) to freely change the speed and sensitivity of your laptop mouse cursor. 6 Slim and comfortable design and 100% satisfaction guarantee Ultra-thin and lightweight, perfect for business travel. The surface of the wireless mouse is made of matte material, which is soft and skin-friendly and anti-sweat. Comes with a Nano receiver (stored on the back of the mouse). No driver needed, just plug and play, we provide 100% satisfaction guarantee Nano Receiver is stored on the back of the mouse with a high precision optical chip.Weight: 0.11kgPackage List One Piece