Function Car wireless,BT5.0,CD sound quality,Handsfree Combination MP3 / MP4 Players, Radio Tuner, FM Transmitter, USB Port, AUX Port, Audio Tuner Place of Origin China Brand Name EARLDOM Material Aluminum alloy+TPE BT Version: 5.0 BT Connection Distance: ≤10m Wide Compatibility: Specker,Amplifier,Headphone,Car audio sysyem,Laptop,Smartphone,Tablet,MP3