[High Quality Music] This Bluetooth receiver is equipped with bluetooth 5.0 chip module and uses the new current acoustic isolation technology, so that your traditional speaker can transmit high quality sound wirelessly with no delay..Support up to 10 m /33 ft connection, control remote playback of music. | [Simple and convenient] Without battery, the car can be started with the car. After the first connection, the car will be automatically connected with the next power. | [General Compatibility] This Bluetooth 5.0 receiver can connect to any power-powered speaker with a standard 3.5mm port or 2RCA port, ideal for home theater, stereo and car speakers, as well as smartphones, iPod Touch, iPhone, iPad and Android devices.【Note: This is only a receiver, not a transmitter】 | [Dual device connection] Simultaneous music playing on two speakers :3.5mm and 2RCA connection option, which can play music wirelessly on two speakers at the same time. It can also connect two Bluetooth devices at the same time; Enjoy free music or a phone call from either of the two matching devices | [High-quality after-sales service] We cherish every user experience and provide 7*24 hours of service guarantee. You can contact us at any time through the channels of Amazon website.