Avantree Long Range Bluetooth Transmitter
Avantree Long Range Bluetooth Transmitter.

A Bluetooth adapter adds wireless connectivity to a computer that has none, or replaces an older part that will not pair with newer headsets and keyboards. Confirm the standard version, the expected range and operating-system support, some adapters still need a driver installed by hand. If an internal module is already present, disable it before use so the two do not conflict.
Product identification
Manufacturer part number: AV-BTTC-580-TTN. Use it to confirm that accessories and spare parts match.