Features: 100% brand new and high quality Using the new Bluetooth-compatible version, the transmission is more sensitive, the signal is stronger, and listening to the song is not stuck. Connect the 3.5mm audio interface, the speaker without Bluetooth-compatible function can also be played wirelessly. Put aside the traditional shackles of old-fashioned wired, wireless listening to music is more free. 3.5+2RCA dual audio ports, suitable for more devices. Connect two mobile phones at the same time, switch arbitrarily, listening to music and watching movies. Supports USB mobile storage devices, and can play music without a network. Connect to the AUX interface and power on to connect to the Bluetooth-compatible of the mobile phone, and it will become the Bluetooth-compatible of the car in seconds. The built-in antenna reduces the occurrence of signal interference and broken edges. Package Includes: 1x Car Audio Receiver Specifications: Material:ABS Size:Approx.7.8x4.8x1.8cm/3.07x1.88x0.7inches Color:Black Support equipment: support two mobile phones to connect Bluetooth-compatible version: 5.0 Output interface: 3.5mm stereo-RCA left and right channels Function introduction: U disk, hands-free call, NFC connection Bluetooth-compatible protocol: AVRCP, A2DP Frequency range: 2400-2483.5MHz Frequency response: 20Hz-20kHz Output power: 28mW RL=16 Support SBC, AAC Forward transmission distance: 10 meters Support Micro USB interface 5V power supply note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.