Features: 1.The mouse is a wireless mouse, and it can be connected to a computer using Bluetooth at the same time, and its use is unlimited. 2.The receiver of the USB interface can be plug and play, and the operation is simple, reducing the clutter of the desktop wiring. 3.The ergonomically designed shape can perfectly fit the curve of your hand and feel comfortable. 4.2.4GHz wireless transmission frequency, the signal receiving distance is up to 10 meters, and the response is more sensitive. 5.Using environmentally friendly ABS material, the exterior is glossy and impact resistant, and the 4?way roller design makes the operation smoother. specification:Item Type: Wireless Mouse Type: Optical mouse Connection with Computer: Wireless, bluetooth Button: 3 keys Interface: USB Wireless Transmission Frequency: 2.4GHz Operating Distance: Approx. 10m / 32.8ft Working Method: Photoelectric Wheel Direction: 4-way wheel Battery: 400mAh Working Voltage: 3.7V Current: 10mA How to use: Wireless Connection 1. Turn on the wireless connection switch and insert the usb receiver 2. Mouse can be used Bluetooth Cnnection 1. Turn on the Bluetooth connection switch 2. Turn on the Bluetooth function on the mobile phone or computer, search for the Bluetooth, pair and connect 3. Mouse can be used PackageList:1 x Wireless Mouse 1 x USB Receiver 1 x Charging Cable