VIPER HELMETS Full Bluetooth System Review of the RSV171 BL + 3.0 Flip Helmet. We talk you through some of the key features of this premium Bluetooth Helmet. #viperhelmets #bluetooth #motorcycle Flip Up Touring Helmet Factory Fitted Bluetooth System 2 X HD Super Quality Stereo Speakers Bluetooth 3.0 Standard, Faster , More Reliable, Safer, More Secure Easy to Use, Robust Control Button on Side High - End Noise Reducing System - Focuses Solely on Voice Up to 650m Intercom Range 8 - Hour Battery Life ( in use ) Supports Connection to Handlebar Remote Control Full Support and Warranty Included Retractable Anti - Scratch Outer Visor PINLOCK Ready Outer Visor with FREE Insert Lens Included in Box Dual DOT / ECE Homologation High - Density , Insulated , Noise - Reducing Lining ECE 22.05, ACU Gold Approved Weight : 1700+/-50g Colours Black, Burgundy, Matt Black, White, Meteor Grey, Blue , Fosh Grey, Fosh Yellow Sizes : XS - XL Facebook https://www.facebook.com/vprmoto/ Twitter https://twitter.com/vprmoto Instagram https://www.instagram.com/vprmoto/