Use for hunting dogs, 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!product features:The product built-in inductor, equipped with magnetic switch. Built-in buzzer, can produce 8 different "BIB" sounds, set this product on the dog`s neck, when the dog move fast, the product will emit a short " ...