... profile 2.Wind noise DSP cancellation 3.Water-resistance, all wereal two-way 500m bt interphone for motorcycle Details ... enabled cellphone/MP3/GPS)Wind noise DSP cancellationWater-resistance, all weather, Friendly for gloves We will describe this communications kit ... approximately 300m/950ft. Please note thatactual range will depend on weather conditions, terrain, presence of obstacles, i.e. a large ...