Easy to Use: The product is easy to connect, without any driver and the tediousness of downloading APP. Output working mode and 3D stereo can be switched by one button, rotary button to adjust the volume, convenient and beautiful to look atAdvanced Technology: With Bluetooth 5.3 chip + EDR technology, the connection is more stable and smooth, fast transmission, no delay and no lag, giving you a perfect experience. External power supply, with Type-C power cable, support charging while using, you can use it for a long time with peace of mind. HIFI-level sound quality transmission is comparable to wired direct connection, lossless audio playbackDual Connectivity: This unique feature allows the sound adapter to connect to 2 smartphones at the same time in receive mode, switching freely between the 2 devices while listening to music or watching a film without any interferenceMulti-functional Interface: Bluetooth adapter receives Bluetooth signals and outputs them via 3.5mm AUX, optical fibre, coaxial to car stereos, old-fashioned stereos, wired headphones, amplifiers and other devices without Bluetooth function, no need to replace the equipment to achieve wireless transmission, easy to add high-quality wireless functions to your audio systemLong Distance Transmission: With a high gain external antenna, the adapter minimises signal interference and ensures clear sound at a range of up to 10 metres. Say goodbye to signal drops and enjoy your music anywhere in the room