[3D Audio Surround] 3D Audio can be switched on or off with a single "3D" Button press. The Green LED will be on when switched to 3D Audio, listen music through your perfect sound Surround system from your smart phone or tablet. [One upgrades all, multipoint Bluetooth] with this audio Bluetooth receiver it is easy to play High fidelity audio wirelessly from any Bluetooth. The hafiz Bluetooth audio receiver can connect two smart phones at the same time to stream audio wirelessly [Instant sound] enjoy a latency lower than 97% of other devices with apt Low Latency technology; end-to-end lag time is now 40 milliseconds so high-definition video is transmitted without problems in transmitter mode [Easy setup, easy to use] Plug the Bluetooth audio adapter into an AC power source. Plug into computer speakers, home stereo systems or other speaker systems via 3. 5 mm audio cable or RCA cable, Pair with the Bluetooth audio devices such as Smart phones or tablet [Enjoy audio wirele