Upgraded Bluetooth 5.3Aux Bluetooth receiver adopts Bluetooth 5.3 technology, which makes the connection more stable and faster.Supports auto-reconnection. Cover range up to 10 m, perfect for home use. Multifunctional One Key ControlThis car Bluetooth aux adapter comes with a Multifunctional key, let you easily control to answer / hang-up / reject phone call, or play / pause / switching music play. Ensures a safe driving, a perfect companion on your trip. Dual ConnectionSupports connecting 2 mobile phones at the same time, this Bluetooth aux adapter car can let you share your favorite music with each other. And no worry about missing any calls. Hands-Free Caling & Voice Navigation BroadcastThis Bluetooth receiver for car is built-in high-performance microphone offers you crystal clear hands-free calling. It is also support voice navigation broadcast, No need to look at the phone on the go, drive safe! Plug and PlayBattery free, this Bluetooth aux adapter with a USB plug port for power supply. And the 3.5 mm aux port is for Non-Bluetooth devices connection. Directly connect, easy to use. Wide CompatibilityWake up your old device! Use this Bluetooth audio receiver to turn a wired stereo into a wireless device. The aux to Bluetooth adapter supports some old car/home stereo, speakers, amplifier, wired headphones. The USB to audio jack can fit perfectly with different devices.