... . The sound of the beeper will changed with the dog`s speed. 3,With CE,RoHS,FCC. Dog Beeper, ... model!product features:The product built-in inductor, equipped with magnetic switch. Built-in buzzer, can produce 8 ... neck, when the dog move fast, the product will emit a short "BIB" sound,when the dog ... dog has been found the prey, then the product will emit urgent and continuous "BIB" sounds.For example: ...