I bought this product because I did not want to UHF helmet "standard" with the frequency that blurs when accidentally touching the wheel or IR headphones that cut whenever there is an obstacle between the headset and the transmitter. This is the ideal compromise (not sizzling or frequency scrambles, accepts the passage behind a wall, but with a limited scope). Would recommend to anyone who does not have too much to move away from the transmitter .. no regrets about buying this if not a little price ...