New Bluetooth 5.1 chip, equipped with wireless 2.4G, low power consumption, more stable, Mobile / tablet / Laptop / Desktop Built in 500mah high performance lithium battery, charging once Use it for 30 days, say goodbye to the trouble of changing the battery frequently Provide a quiet and comfortable environment, so that you others Work as you like, if you want Wide provides support for palm and thumb Place the wrist in a natural holding position to reduce wrist pressure Bluetooth + 2.4G dual mode switch to use. Item No.:HML-81 Bluetooth + 2.4G Model:VML-11 Type: Bluetooth mouse Mouse size: ordinary mouse (100-120mm) Connection with the computer: Bluetooth Applicable models: laptop Optical resolution: 1600dpi Number of buttons:6 Wireless transmission frequency:2.4GHz Whether to support ergonomics: support Resolution adjustable: three gears and Operating distance:6 Working mode: photoelectric Scroll wheel direction: four-way scroll wheel Features: ultra-thin, Mini,Wireless colour:Black Material:ABS size:122 x 77 x 43mm Package Contents: 1 x mouse 1 x charging cable 1 x USB interface 1 x user manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.