[Bluetooth AUX Receiver for Vehicles] – The Bluetooth AUX Receiver 3.5 mm lets you transform your old car radio, home audio system or wired headphones/speakers into a wireless system. The receiver is compatible with most Bluetooth devices such as smartphones, tablets, laptops and computers. [Hands-free calling and wireless music playback] – This Bluetooth AUX receiver can be easily paired with your Bluetooth device. The built-in microphone allows you to make hands-free calls. With just one touch, you can accept, reject, end a call or redial the last number. The multifunction button (MFB) and the volume buttons make it easy to control music playback. [Bluetooth 5.0 and Dual Connection] – This receiver is equipped with Bluetooth 5.0, which guarantees a stable connection. You can connect two devices at the same time, so you won't miss any calls while listening to music. The Bluetooth range is up to 10 metres without obstacles and the device automatically connects to the last paired device. [Fast charging and long battery life] – A button is used to switch on the receiver and put it into pairing mode. The built-in battery offers an impressive playing time of up to 16 hours when fully charged. Thanks to the fast charging function, the receiver can be fully charged in just 2 hours. [Portable and lightweight] – This Bluetooth receiver weighs only 14 grams, is very compact and can be taken anywhere. It is very suitable for use on the go, especially for drivers.