【4 Humanized, Effective, Safe Training Modes】Our dog shock collar features 4 humane training modes: beep(1-8 levels), vibration(1-16 levels), safe shock(1-99 levels) and Shock Boost(10% higher). Enables you to set the right stimulation levels for your pet, which is helpful in deterring dogs from undesirable habits.

【4200FT Range & 2 Channel】The dog training collar covers up to 4200FT allowing the dog to roam farther, making it easy to train your dog indoors or outdoors. With dual-channel, one remote supports 2 receiver collars, and you can train 2 dogs at the same time! Besides, it has a memory function without resetting it.

【Security Lock】The electric dog collar instant response security on/off switch button allows you to carry it without any fear of accidental touch.

Item Package Dimensions L x W x H: 7.09 x 4.96 x 2.32 inches