The holder screwed easily to solve the housing without while driving (cylinder) which I found to be very positive. The Einlegschalen rubber I have to reach a little cut to the optimum grip on the handlebar centered. The Niegungswinkel can be optimized by the holder on the handlebar since the head is only partially adjusted. The Sound comes naturally through the housing at the Cam a little too short but one can attach a micro deported - for that there are instructions in video channels. Is very robust and his money in worth but would offer the Sony part equal to the purchase of Cam as an accessory.