BLUETOOTH 5.0 --- Equipped with the Bluetooth 5.0 technology, can be connected to the device more stably, and can transmit quickly and reduce noise as well as low latency to ensure excellent stereo effects. Built-in high-definition microphone so you can talk hands-freeCLEAR SOUND --- A2DP support voice prompts, gets high-quality audio sound, offers you 33 feet operation range with good performance, gives you a good experience when answering the phone or watching late-night showsBUILT-IN MICROPHONE --- You can talk clearly without using the microphone on the headset cable, built-in omnidirectional microphone, you can talk freely at any angleSIMPLE AND EFFECTIVE --- Transforms your home stereo and car audio sound systems into wireless and Bluetooth compatible speakers with just one, easy-to-use plugPORTABLE --- Very tiny size, you can take this Bluetooth audio receiver whenever you go; Bluetooth audio adapter works up to 8 hours