... beeper will changed with the dog`s speed. 3,With CE,RoHS,FCC. Dog Beeper, Exclusive private model! ... " sounds, set this product on the dog`s neck, when the dog move fast, the product will emit a ... for one sound represent first dog."BIB" For two consecutive sound represent the second dog, and so on, the hunter ... can control 8 dogs at the same time. Dog collar CP-D100 ...