... , the sound of the beeper changed with the dog`s speed, all the dog beeper with CE, FCC, RoHS certificate. Dog collar Dog Beeper, Exclusive private model ... different "BIB" sounds, set this product on the dog`s neck, when the dog move fast, the product will emit a short ... hunter can control 8 dogs at the same time. Waterproof dog beeper factory direct sell with CE,FCC,RoHS certificate