Keyboard with Wireless BT5.1 Mouse Ultra Slim RGB Backlight Silent Wireless Keyboard Mouse Combo for Win for OS X PC Computer Laptop Smart TV White Item Type: Keyboard Mouse Combo Material: ABS Mouse Parameters: Connection Mode: BT, 2.4GHz Bluetooth: 5.1 Mouse Size: Approx. 113x57x25mm / 4.45x2.24x0.98in Operating Current: 30mA Battery Capacity: 500mAh Li Ion Battery (Built In) Working Mode: Optical Technology DPI: 800 1200 1600 Keyboard Parameters: Bluetooth: 3.0 Effective Operating Distance: Within 10m / 32.8ft Modulation Mode: GFSK Sustainable Working Hours: 150 Hours Standby Time: ≥60 Days Charging Time: 2-3 Hours Battery Capacity: 400mAh Li Ion Battery (Built In) Key Life: 5 Million Clicks