Soundsync A33412-in-1 Bluetooth Transmitter and Receiver2-in-1 DesignSoundsync A3341 combines a transmitter and receiver in one compact body. This gives almost any device Bluetooth functionality to bring it into the present day.Latest Bluetooth TechnologyBluetooth 5 delivers transmission speeds that are twice as fast as Bluetooth 4.2, and super-stable connection, even at distances over 33 ft (10 m).Lag-FreeBy reducing the delay between the audio and picture to undetectable levels, aptX Low-Latency ensures there?s no distracting lag.Superior SoundaptX HD music preserves sound quality via lossless transfer over Bluetooth to deliver music in the same incredible fidelity you?re used to hearing.Sharing is CaringTransmitter mode connects up to two Bluetooth headphones to your TV, while receiver mode pairs up to two smartphones to your home stereo system.Multiple Input Choices Connect to your existing devices using AUX, RCA, or optical cables, to expand their functionality and connect with newer technology.Extended PlaytimeA high performance Li-Polymer battery ensures you can enjoy up to 20 hours of use in transmitter mode and 17.5 hours in receiver mode.