I looked it become untraceable helmet store for a while (stop this Model) yet I'm on my second, the first died in force 2 years of use (rain, sweat, shocks) and headphones PERFECT just one hand to the cable length can be reduced by 10-15 centimeters sound level control is the ideal length with an armband for iPhone! The surrounding sounds are perceived in very safe street race ... The sound is very good.