[No more accidents] Do you regret the accident caused by your improper operation? Now with an electric barking dog collar, your dog will not suffer any further accidents. Safety keypad lock prevents improper operation. use on the remote control. It is very easy to control and you will never hurt your dog. The switch button allows you to quickly change the collar for control. If you have multiple partners, this flexibility in number can avoid complications. It is much easier to manage one remote control than it is to manage three remotes both.1pcs & nbsp; [2 hours charging] The uncontrollable training collar allows you to use a variety of charging methods. When you and your dog are hiking, climbing, or camping, you can provide training and education. In order to protect the longest time of power usage, if there is no indication within 8 hours, the receiver will enter standby mode.