3 Training Modes and 3 channels: Our dog training collar with remote offers 3 harmless training modes beep vibration (1-100 levels) and shock (1-100 levels) to help correct dogsA uncontrollable bad behaviors 1+3 channel design means it supports a maximum of 3 dogs training 3300ft Remote & IPX7 Waterproof Receiver: Remote range of our dog shock collar can reach 3300ft in free area up to 1968 ft in barrier area Let your dog enjoy its training time wherever you want Swimming or showering DonAt worry - everythings control ItAs a waterproof dog training collar Adjustable TPU dog collar: This training collar for dogs is made of TPU which is a kind of environmental friendly material High Quality Durable & Light Weight comfortable for All Sizes of Dogs 360A Reflective Straps - getting extra visibility from distance at night USB Recharged Battery & Long Standby Time: Both bark collar and remote can be fully charged in 2 hours The max battery capacity of receiver is 650mAh and can work 30 days The max battery capacity of remote is 300mAh and can work 60 days SAFE TRAININg EVEN IF A BEgINNER: ROJEcO cares and loves your puppy This dog shock collar with remote is certified by Fcc ROHS cE and conductive silicone cover Keep their skin away from irritating Do u know Even if the size or species is same dogs may have different feelings ThatAs why we offer 0-100 level vibration and shock mode