CNDT Electric Dog Bark Control Rechargeable Shock Collars with Remote Receivers for Small Medium Large Puppies Training 3 training modes dog shock collar provides 3 efficient modes: Sound/vibration/shock mode. Three perfect modes meet your different training needs. Dog training collar Also offers 1-100 intensity range. You can easily adjust from 1-100 levels of customization according to your pets feedback. Ergonomic design perfect design of blind operation and anti-stuck buttons. You can send out the different training commands through different Separate command buttons. Two straps are soft, adjustable and won't irritate dogs. 330 yards remote range 2 Dog remote training collar for up to 330 yards remote range, easily train your dog in the park or backyard; the remote also features a dual channel to support training 2 dogs simultaneously. Waterproof & rechargeable 100% waterproof receiver and water-resistant transmitter. It can handle any wet environment your dog decides to jump into! Practical USB charging. Transmitter and receiver can be charged at the same time, so the dog training is always ready. Warranty 100% Satisfaction guaranteed, the guarantee Will be provided from the date of purchase. If the product has a problem or you are not satisfied with our product, please contact us and we will reply immediately. If the product is faulty, we GUARANTEE 100% Free exchange.