Bluetooth Aux Receiver for Car. Transform your old car stereo, home stereo, wired headphones, or speakers into wireless devices with this Bluetooth 3.5mm Aux Receiver. Compatible with most Bluetooth-enabled devices like smartphones, tablets, laptops, and computers. Enjoy Hands-Free Calls and Wireless Music. This Bluetooth AUX receiver pairs with Bluetooth devices, and the built-in microphone allows for hands-free calls. Easily answer, reject, hang up, or redial the last number with a single button. Designed with MFB and volume +/- buttons for convenient music volume adjustment. Bluetooth 5.0 & Dual Connection. Equipped with Bluetooth 5.0 for a stable connection. Connect up to 2 devices simultaneously, ensuring you never miss a call while enjoying music. Offers a Bluetooth range of up to 10 meters (33 feet) without obstructions. Automatically connects to the last connected device. FAST CHARGING & LONG BATTERY LIFE. One button to power on and enter pairing mode. The built-in battery provides extended use, supporting up to 16 hours on a full charge. Features fast charging, reaching a full charge in just 2 hours. Package Contents: 1 x Bluetooth Music Receiver 1 x USB Charging Cable 1 x 3.5mm Audio Conversion Cable 1 x 3.5mm Metal Adapter 1 x English Product Manual