Bluetooth Receiver, SUFUM Portable Wireless Audio Adapter Music Receiver Car Kit Speakerphone with 3.5 mm Stereo Output for iPhone and Android Smart Phones Bluetooth Version: Support Bluetooth V3.0. Support A2DP stereo profile, 3.5mm stereo inlet socket Can connect microphone and support phone calling through Bluetooth dongle Use with home stereos/speakers, car stereos, headphone (etc.) Portable design, just enjoy handsfree calling while driving.