【Convenient independent design】This dog training collar has a practical design with separate colored buttons to avoid confusion, allowing you to quickly switch modes and correct your pet’s behavior during training 【 【Waterproof Rechargeable Receiver】The receiver collar and remote control are rechargeable. The collar receiver is waterproof, so your dog can swim freely, in the park or anywhere else with the collar on. The remote control also has two channels, which can train 2 dogs at the same time. 【Convenient stand-alone design】This dog training collar has a convenient design with separate colored buttons to avoid confusion , allowing you to quickly change modes and correct your pet’s behavior during training 【Rechargeable Waterproof Receiver】The receiver collar and remote control are rechargeable. The collar receiver is waterproof, so your dog can swim freely, in the park or anywhere else with the collar on. The remote also has two channels, which can train 2 dogs at the same time.