Color: BlackType: USB adapter BluetoothVersion: V5.0System: Windows XP / Vista / Win7 / Win8 / Win8.1 / Win10Interface Type: USB 2.0 (supports all USB interfaces)Transmission Distance: 20 m / 65.62ft (open field)Transmission Speed: 10 MbpsWorking frequency: 2400 (MHz)Size: 2.3 x 1.45 x 0.53 cmWeight: 15g
