Features: 2 IN 1: Universal Bluetooth audio adapter makes your TVs and other Non-Bluetooth devices Bluetooth enabled to stream audio to your Bluetooth headphones, or makes your home stereo Bluetooth enabled to receive the wireless music streaming from your phone and tablet. 3.5mm audio cable connection. Note: This device can be used to answer calls. Bluetooth 5.0 + EDR: Bluetooth 5.0 + EDR allows for a more stable connection with devices, which also achieves a range of up to 33ft in the open air and up to 35ft indoors. Application: You can enjoy the TV show or CD-Like music from your smartphone or other Bluetooth devices via the Mini Bluetooth transceiver. Plug and Play: No driver required, easy to use. Works with the device which has 3.5mm jacks. USB Power Supply: Charge it on the USB port and connect it to the device via the audio adapter while using. Specifications: Interface: USB, 3.5 mm jacks Transmission rate: 100 (Mbps) Effective working radius: 10m Bluetooth standard: 5.0 Working frequency: 2.4 (MHz) Battery capacity: 140mAh Charging time: 1H Working time: 4H Package include: 1x Bluetooth Receiver Transmitter 1x Charging Cable 1x 3.5 Audio Head 1x Manual