Easy to pair and connect via your device's Bluetooth-compatible 3.0/5.2 Bluetooth-compatible switch: When it reaches the middle, it is off; when it reaches the top, it is 2.4G; when it reaches the bottom, it is Bluetooth? 2.4G wireless transmission, USB receiver to ensure a reliable connection, and eliminate delay, loss, and interference The left and right clicks are both silent, with no sound when you click 4 keys, more convenient for game operations 3 kinds of DPI adjustable provide precise positioning (1000/1200/1600DPI) Built-in 500mAh rechargeable battery, providing long use time after 2-3 hours of charging The ergonomic shape fits the hand and brings the comfortable grip Support for Mac OS/Android/Windows system A great partner for your leisure or working time, suitable for office or home use Specification: Connection mode: wireless Applicable models: laptop, desktop computer, Bluetooth-compatible mobile phone, Bluetooth-compatible tablet Photoelectric resolution: 1000/1200/1600 DPI Number of keys: 4 keys Interface: USB Wireless transmission frequency: 2.4GHz Wireless distance: 10m Working mode: photoelectric Scroll wheel direction: four-way rolling Product size: 101*63*35mm Product weight: 70g