【3 Adjustable Training Modes】: The dog training collar provides 0-5 levels of customized modes, including static electric shock and vibration, as well as a standard tone (beep) mode. Effectively helps correct obedience to barking, sitting, walking, attacking and other behaviors. The dog training collar provides 0-5 levels of customized modes, including static electric shock and vibration, as well as a standard tone (beep) mode. Effectively helps correct obedience to barking, sitting, walking, attacking and other behaviors. 【500m Through Wall】: This high-tech anti-bark collar can reach up to 875m (2600ft) of wireless telemetry without obstacles, and it can work well even with obstacles. Perfect for training dogs indoors and outdoors. 【100% Waterproof & Rechargeable】: The dog shock receiver is 100% waterproof. Both the receiver and the controller are rechargeable and can be charged simultaneously using an adapter. Fully charged in 2 to 3 hours, the receiver can standby for 7 days and