Features: This audio Bluetooth adapter support 3.5mm aux audio, and also compatible with all smartphones, bluetooth audio devices (Bluetooth headphones, Bluetooth speakers and much more), and stereo equipment with audio input port. By pressing the button on the center front, the receiver & transmitter device will start to pair to the next Bluetooth device. 2in1 design, by using this wireless adapter, you can send and receive all of the audio freely and easily. Transmitter enables your TV, AV Receiver, Radio and other home audio source devices to stream music to your Bluetooth headphones or speakers; Receiver lets non-Bluetooth devices like your home stereo or AV Receiver and wirelessly stream music from your cellphone/PC. A2DP support voice prompts, gets high-quality audio sound, offers you 30 feet operation range with good performance, gives you a good experience when answering the phone or watching late-night shows. In order to get clear sound, we recommend NOT using the 3.5mm Bluetooth transmitter-receiver while charging. Want to watch football/baseball / Boxing / Golf / NBA game late at night without waking anyone up? This is a great chose for you. Bluetooth transmitter function wirelessly streams audio to Bluetooth speakers or headphones from your TV or older media devices like portable CD players that lack built-in Bluetooth. Bulit-in mic, so you can use it to handsfree call. Specification: Model number: A60 Bluetooth: V5.0 Transmission Distance: 10m / 33ft Battery : 150MA Charging Time:2 H Working Time: TX : 5h ; RX: 8H Audio Port: 3.5mm Color: Black Package includes: 1 X Bluetooth Transmitter&Receiver 1 X USB Charging Cable 1 X User Manual NO Retail box,Packed safely in bubble bag.