Check the listing for details. Bluetooth 5.0 Transmitter and Receiver with 3.5mm Audio Input-Out USB Charging. Color: Black, Condition: New. Listed at 13.49 USD. Simple to use to either transmit from an audio source such as your TV or radio to Bluetooth headphones, EarPods or Speakers. The product is easy to use, which is able to transmit or receive. Through the Bluetooth receive mode you can send your phone music to the traditional home audio equipment. It is also convenient to send TV, CD player, MP3 or other sources to the Bluetooth speaker or Bluetooth headset through the device depending if you use TX or RX audio. It also supports sound real-time transmission of online games, television and film.Description: Built-in rechargeable battery, which has a decent battery life time: more than 10H It solves the limitations of audio equipment that have no Bluetooth feature Bluetooth Standard: Bluetooth now 5.0 Support: A2DP, AVRCP MP3, WAV, WMA,APE,FLAC Transmission distance: more than 20M (65ft!) Built-in Power: 3.7V or 5V from USB cable Charging time: 2H Input or output connection: 3.5mm Stereo Female