ALEKO TS-BC02 Dog Training Hunting Collar with Safe Strap Collar and Beep Mode Sound Ability Electronic Hunting Dog Locator Beeper within 8 sounds The product built-in inductor, equipped with magnetic switch and Built-in buzzer. Water-proof with battery (Lithium Battery CR123A 3V 1300 mAh) It's a Beeper for Hunting dog's. When the dog move fast, the product will emit a short "BIB" sound, when the dog move slow or doesn`t