BLUETOOTH MOUSE WITH DUAL MODE (BT 5.1 + 2.4GHz) Dual-mode wireless mouse allows free switching between two devices with one mouse by simply switching. It can connect one device via Bluetooth and the other via a 2.4 GHz USB receiver. Note: You cannot use Bluetooth mode and 2.4G mode at the same time. 2021 Latest Upgraded LED Design The upgraded mouse with LED lights makes boring office life even more fun. The bottom of the mouse has a power switch, you can switch the light freely. Low-key or sparkling, switch in a second, suitable for all occasions. 3 ADJUSTABLE DPI LEVELS AND SILENT CLICK Between 1000, 1200, and 1600 to meet different needs. Special silent design for right and left buttons, allowing you to concentrate on working or playing games without disturbing others. BUILT-IN BATTERY AND AUTOMATIC ENERGY SAVING The mouse's built-in rechargeable battery, with a charging cable. No need to replace batteries. To save power, the mouse will go to sleep after 10 minutes of inactivity, it can be woken up by clicking any button PORTABLE AND POCKET SIZE Lightweight, slim design makes it perfect for travel, easy to put in your laptop bag or pockets.