BT-S2 Motorcycle Helmet Wireless Bluetooth Earphone Waterproof Handsfree Interphone Walkie talkie with FM Radio

1.Works as a hands-free headset for mobile phones up to 8 meters conversation1000 meters between two drivers 2.Fits any type of motorcycle helmet 3.Up to 8 hours of talk time 4.Up to 300 hours standby 5.Secure automatic reception of mobile phone calls 6.Support voice dial, last dial number 7.Music control via AVRCP: forward, backward, play, pause 8.With DSP echo cancellation and noise suppression technology