MT760M Multi-mode Wireless Optical Mouse Multi-mode wireless connection: 2.4 GHz, Bluetooth 4.0, Bluetooth 5.0 Adjustable 4000 DPI HD sensor 10 mouse buttons Programmable buttons Bluetooth/2.4GHz switch button Rechargeable lithium battery (800 mAh) Wireless charging extension module extra available Silent side scroll-wheel & DPI switch Aluminium-alloy Scroll Wheel Nano USB receiver On/Off switch