I have a Shark helmet vision-r full, installation was very simple, I removed the foam protection inside the helmet to disappear queues. The cord between the phone and the headset is not disturbing while driving and you shall eat all your battery as for Bluetooth kits ... After 1 month of use, for the price, I am fully satisfied . To hear perfectly must position the headphones in front of the ears, it will take 2-3 tests before having well positioned a few centimeters side and means something bigger. For mp3 music, the sound is more than correct, the bass are not bad, the music is pleasant to listen to, even exceeding 80 km / h its still audible, do not expect to be able to recognize all the instruments, but music will mask the sound of wind which already enough. For calls, it is a little more complicated, I have an iphone and I feel that the call mode the iphone is lower, making all conversation impossible more than 65- 70 km / h, but the pass this speed in the city is rare, and I remember that the calls by motorcycle is not super advisable for safety. For owners of Iphone 1, the dropout button to change music as with standard microphone: 1 time is pause / play, next time it's 2, 3 times it's back, held 2 times ahead fast, 3 times kept rewinding.
Finally for the price, I am very satisfied, to daily use, it is less of a hassle than check if the Bluetooth is connected, if there is enough battery back etc .. etc .. as I know not what is a Bluetooth headset ... and that adapted to the Shark helmet, the famous sharktooth costs 185 euros on average, I quickly make my choice
