Feature:1. [HD Sound] HD lossless sound quality, listening to songs, zero delay stereo sound quality, enjoy excellent lossless transmission sound quality and cinema sound effects.2. [Rich Interface Design] Rich interface for receiving sending, and easy switching for all audio devices. Upgrade the old car stereo, easily connect to the car stereo phone, listen to music or navigation wirelessly.3. [NFC Sensor Pairing] Touch connection, built in NFC sensor chip, close to the second automatic popup window, compatible with all kinds of NFC feature phones, reducing tedious operations.4. [Connect Wirelessly] Turn ordinary speakers into Bluetooth compatible speakers, connect 3.5mm audio. The TV connects to the theater TV wirelessly, upgrades the Bluetooth compatibility in one second.5. [Bluetooth 5.0 and Long Range]Bluetooth 5.0 is used to provide high quality wireless audio performance. 15m / 49ft transmission distance, large signal range, fast and stable connection, enjoy wireless connection.Specification:Item Type: 2 In 1 Audio Receiver TransmitterMaterial: PlasticBluetooth Version: 5.0Connection Range: Approx. 15m / 49ftFrequency Response Range: 10Hz-20HKzSignal to Noise Ratio: Less Than 110dBFunction: 2 in 1 Receiving SendingPower Input: DC 5VInterface: AUX, RCA, Optical Fiber.Package List:1 x Audio Receiver Transmitter