[Automatic power saving]: If there is no operation within 5 minutes, the remote control and receiver will enter standby mode, super power saving. 【Waterproof and Rechargeable】: Waterproof receiver collar, can be used in wet weather or water games, but it is not recommended to use when the dog is swimming. Rechargeable remote control and receiver collar. Upgraded version of timely and effective dog behavior training collar 【Baby Features】: 1. Four major functions: warning sound, vibration, electric shock. 2. Signal mode: vibration, beep and light. 3. Remote control plus LED flashlight. The classic design of the digital display of the remote control, the receiver has become more compact 2. There are also one-for-two in our store, except for multiple receivers, they are the same. 3. The remote control distance is 300 meters (in the case of open space and no radio interference), but the distance through the wall may be shortened. 4. Vibration, and electrostatic pulse stimulation each mode