UNIWENT Bluetooth 4.1 Receiver A2DP Wireless Adapter for Home Audio Music Streaming Sound System with 3.5 mm Stereo Output for Car, Home Stereo, iPhone, Samsung, Android, Headphone &Speakers(Black) Bluetooth Receiver Dongle: Turn non-Bluetooth headphone or speaker into enable-Bluetooth one as if by magic Maximized Compatibility: Bluetooth 4.1 receiver fully backward compatible with Bluetooth 2.0,2.1,3.0,4.0 device such as smartphones, tablets, laptops etc. The perfect companion for home or vehicle audio systems Safe And Convenient: Enjoy hands-free calls with built-in microphone ,so you can focus on the road Anyone Can Be the DJ: Friends and family can cast their music to your speakers using their own phone or tablet without additional pairing or set-up required