✅【Bluetooth Receiver】This device is just a RECEIVER. It can turn your old car stereo / home stereo / speaker / wired headphones into Bluetooth-enaled devices, which can save you from the limit of cables. | ✅【Hands-free Calls & Noise Cancellation】The CSR Bluetooth chip with Hands-Free Profile and built-in microphone ensure you not miss every call even while driving. The superior noise cancellation technology ensure excellent call quality. | ✅【Activate Voice Assistant】Double press to activate the voice assistant of your phone to make your driving safe. | ✅【16-Hour Playtime】This Bluetooth receiver is built in a high-capacity battery, it supports 16 hours of playtime and can work while charging. | ✅【Bluetooth 5.0】Bluetooth 5.0 provides 20m signal range and dual device connectivity with stable connection and fast transmission for all your daily use. | ✅【Easy to Use and Portable】No driver needed, one-step setup, plug and connect. 1.6 inches, 0.65 oz, mini but powerful.