Ugreen Ergonomic Silent Bluetooth Wireless Mouse - Black | 90395

* Dual Mode: Wireless: 2.4 GH z& BT 5.0 * Operating Distance: 15 m/49.2ft * 4000 DPI 4 Adjustable Levels (000/1600/ Buttons Function , * Silent Click <40db , * On/Off Switch * Power Saving Mode, 18 Months Battery * Easily Switch Between 2 Devices * Ergonomic Design: Palm Grip Mouse. Long Term Comfort * Click button: Mute button, the lifespan of 3 million times * Scroll: Rubber material with silent encoder, 300,000 times lifespan * Insert the AA alkaline battery * Compatible Systems: Windows; Linux; Chrome 0S; Android & Support Mac mode