BELMONT MP-130 Whistle BLSKU45400950613030OverviewThe sound around 3000 Hz .The volume is about 95 dB.FeaturesAccessory Size47 mmAccessory OtherABS resin,PE resinBrandBELMONTUS $2.41 US $0 4540095061303Customer reviews and ratingsBe the first to write a review of this product!