Bluetooth Receiver 4.1 Wireless Audio Receiver 3.5 mm Headphone Adapter With Hands-Free Calling And Aux Port For Earphones Home Car Stereo Speakers; Turn on, Connect Bluetooth devices, receive mobile or other Bluetooth devices audio signal with one press.; Portable Design: Mini size with clip; Can Connect Two Bluetooth Devices At The Same Time; Built-in rechargeable lithium battery, provides up to 4 hours working time, plug and play, and only takes 50 minutes to fully charge it; Amazing Acoustics, Crisp Clear Sound

Stereo bluetooth and handsfree, remote, audio line (optional), micro SD card slot, mobile phone charging

Multifunction Wireless Car MP3 Player. Support: USB or microSD card, car charging., answer phone calls during driving, FLAC.