2 in 1 Transmitter and ReceiverBluetooth transmitter supporting dual-stream (TX mode & RX mode). Receiver mode: Transmits audio wirelessly from your Bluetooth-enabled phone, computer to your stereo, speakers or headphones. Transmitter mode: wirelessly transmits audio from your non-Bluetooth TV, home stereo or CD player to your Bluetooth headphones or speakers. Bluetooth version 5.0 Stable and reliable streaming with the latest Bluetooth 5.0 + EDR,CSR8670 chipset, Bluetooth 5.0 chip thatensures that Bluetooth audio signals are transmitted to musicstreams with high fidelity to those speakers or home stereo systems that do not have this feature. Broad CompatibilityWith the included 3.5mm cable and 3.5mm to 2RCA cable, this Receiver Transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc. Plug & play No need to drive and download APP, Bluetooth receiver just plug it in the aux port, turn on Bluetooth on your mobile, connect and play. Easy to pair and compatible with 99.9% Bluetooth devices. Bluetooth 5.0 with an audio adapter, the data transfer rate is two times higher than that of Bluetooth 4.2, and it can be kept at a distance of up to 15 meters (without barriers).