Lenovo 520 RF Wireless Optical Mouse in Black Platinum 1,000 DPI Brand compatibility___Fairphone Sound during phone calls is Sound during phone calls is loud and clear with Hearing aid compatibility (M4 T4) The attractive dark blue aluminium shell is designed to catch the eye and comes with anti bacterial coating throughout 1 Weight & dimensions Weight 70 g Height 35 mm Depth 105 mm Width 62 mm Packaging content User guide Yes Batteries included Yes Receiver type Nano receiver Wireless receiver interface USB Type A Receiver included Yes Packaging data Package type Box Package height 197 mm Package depth 55 mm Package width 120 mm Quantity per pack 1 pc(s) 4 GHz wireless technology via nano USB receiver