Specifications Product name bluetooth dongle adapterColor BlackMaterial Gold plated plugbluetooth version V5 3Frequency range 2 4GHzSupporting protocol A2DP HSP AVRCP HIDTransmission distance 0 20mRated voltage DC 5VInterface type USBOperating system Win8 1 Win10 Win11Size 28 7 15mmPackage size 133 108 15mmFeatures 1 Can be used to connect various electronic devices with bluetooth to enjoy wireless life such as computer laptop audio earphone mouse keyboard and so on 2 In an environment without interference a transmission distance of 20 meters can be achieved 3 Wear resistant and anti oxidation material higher quality 4 Automatic memory device after the first pairing the subsequent computer will automatically connect when it is turned on Package Include 1 bluetooth Dongle Adapter