ANTI-INTERFERENCE ABILITY: USB Bluetooth receiver has fast data transmission speed, bluetooth 5.0 usb dongle easy to pair with other devices, good anti-interference ability, low output delay, and stable performance. The maximum wireless range of the 2-in-1 Bluetooth adapter is 10m / 33ft (without obstacles). BLUETOOTH 5.0: This wireless Bluetooth adapter can be used as a Bluetooth receiver and transmitter. Bluetooth 5.0 allows your PC, laptop, or computer to connect wirelessly to any other Bluetooth-enabled device. TRANSMITTER MODE: The USB Bluetooth adapter can wirelessly transmit audio from a non-Bluetooth TV, home stereo system or CD player to a Bluetooth headset or speaker in the transmitter mode. RECEIVER MODE: This Bluetooth 5.0 adapter can wirelessly transmit audio from Bluetooth mobile phones, tablets or computers to wired stereo speakers, MP3 players or headphones in the receiving mode. PORTABLE: The USB dongle adapter is small in size, light in weight, and light in weight. USB audio transmitter is convenient to carry when going out for work and entertainment. The USB Bluetooth adapter is compatible with most Bluetooth-equipped products on the market to meet your various needs.