【3 Training Modes and 1+ 2 Channels】: This dog training collar offers 3 individual training modes, beep, vibration, and shock, allowing you to adjust the stimulation level quickly whenever needed. Also dog training collar with a remote has a 1+2 channel design and memory function for settings, which means you can train 2 dogs at the same time without resetting it. Great for helping correct dog barking, walking, leash training, sitting, aggression, peeing, and other bad behaviors. 【Safe Silicone Prong and Settings】: Our dog shock collar receiver is safe to use since it comes with non-removable silicone protective prong, it would not hurt your dog’s skin when training. In addition, there are anti-accidental shock settings, when you want to switch beep or vibration mode to shock mode, you need to double click the shock mode, then the shock function work. Note: The shock collar for dogs should not be worn longer than 12 hours per day. 【Long Remote Range and Battery Life】: This dog shock collar with remote range of up to 1640ft (550 yards) in barrier-free area, 1000 ft (330 yards) in barrier area, you can train your dog easily both indoors and outdoors. Both receiver and remote are rechargeable, it takes 2-3 hours to be fully charged. The receiver's battery can last for up to 15 days in standby time and 7-10 days in working time, and the remote can last for up to 90 days in standby time and 25 days in working time.