Bluetooth Audio Adapter for Music Streaming Sound System, esinkin W29-us

Easy setup and automatic reconnect: Pair your device to the adapter once with a single button press. It can reconnect automatically with the previously paired device.
Wireless range: Indoors(without obstacles) connect rang up 30-40 ft (10-12 m).
Works with most device: Bluetooth enabled device including smartphones, tablets, computers, laptops upon and any powered PC speakers, home stereo systems and A/V receivers.
NOTE: This adapter doesn’t have built-in battery, power by AC to DC power adapter or USB cable. This product is a bluetooth receiver ONLY, not a bluetooth transmitter. Only to give Bluetooth capabilities to an existing stereo / powered speaker / PA.