Transmitter and Receiver 2 in 1The portable bluetooth adapter can be used as the transmitter or the receiver. In transmitter mode, Bluetooth 5.0 Transmitter pairs with Bluetooth-enabled devices and transmits audio signals to them. In receiver mode, Bluetooth adapter is paired with Bluetooth phones, Pad and receive audio signals from them. This Bluetooth 5.0 adapter can automatically reconnect the last two connected products. New Version Bluetooth 5.0The adapter provides more stable and faster Bluetooth connection through Bluetooth 5.0, and it is suitable for all systems home and car speakers. With bluetooth 5.0 technology, you can enjoy music and hands-free calling with high quality sound. Genuine Audio QualityWith built-in advanced CSR chip, transmitter mode and receiver mode aptX support to keep more audio details. You can enjoy higher quality sound without loss and it costs less time during transmission, low latency. Double and Fast ConnectionUpdated version of Bluetooth 5.0 is suitable for more devices. It can be used as an auxiliary connection with a 3.5mm transmitter (TX) or receiver (RX) or a USB charger. In TX mode, you can connect two Bluetooth headsets at the same time using the adapter. Slide the button to choose the TX(transmitter) / RX(receiver) mode, automatic connection without having to download applications. So it is easy to use. Long Battery Life & Multi-protectionBluetooth 5.0 Transmitter and Receiver Adapter with built-in 300mAh battery serves you about 5 hours after 2 hours fast charging. Enjoy beautiful sound from a distance of more than 10 meters, without the cable connection, without the constraint of distance. It allows you to improve the quality of life. We assure you a 24-month after-sales service.