Bluetooth Receiver Portable Mini 4.1 Car Aux Adapter Hand-free Audio - Black

Advanced Bluetooth Recceiver: bluetooth Car Adapter is not only for car, it is also could connect with your wired headphones via audio cable/adapter to help you enjoy the wireless.
Dual-Link Connection Wide Compatibility: could connect two Bluetooth devices at once and the Bluetooth range up to 33 feet in open space without obstacles. And it also could compatible with most Bluetooth enabled device smartphone, MP3, tablet, etc, ideal for home or vehicle audio systems.
Extra-Long Play Time: with built-in battery, can provide up to 4 hours playing time and talk time, only 0.5 hours charging time.
Easy Control: you can answer phone calls or control music on the receiver. Change volume, play/pause/skip music, answer calls, redial the last called number with ease.
Magic Function: use it to connect 3.5mm headphone jack, make your headset become a wireless Bluetooth headset. Audio receiver can also be used as a pair of sports headphones, the anti-sweat and small clip design features makes it a good partner for outdoor activities such as jogging, skating, golfing and fishing.