4 Training Modes & Security Lock】Offers 4 safe training modes: beep, vibration, shock and shock boost. Dog shock collar boost mode allows you to set the right stimulation levels for your pet and allows for adjustments based on each dog's differences, which helps deter your pet from bad habits. With the security lock can prevent accidental pushes while carrying the remote. 【Automatic Stop Barking Mode】Upgraded dog training collar with automatic no barking mode which is full-automatic and without a remote, just press the remote AUTO button for 3 seconds to switch. 8 adjustable sensitivity levels, just press the M button to switch the mode at will, and all annoying barking at night or after you leave home will disappear. 【4 Channel & 2600Ft Remote】Fdceligoo dog shock collar supports up to 4 channels, suitable for people with multiple dogs, so you can train up to 4 dogs at the same time with just 1 remote. Dog training collar with remote up to 2600Ft range and IP67 waterproof allows you to train your dog in the backyard, park, or beach else without restriction. 【Dual Color Screen Digital Display】2 in 1 dog auto bark shock collar with remote adopts an intuitive color interface, the remote and the dog training collar are designed with the same icons, when the remote sends a training command, the corresponding training icons on the collar will light up, easy viewing, thus enhancing the visual feedback during the training process. 【Dog Shock Collar Replacement Strap & Long Lasting Battery】The package extra with a collar that prevents your collar from being bitten by your dog, it's easy to install. Dog training shock collar for large medium small dogs with neck sizes from 9 to 27.5 inches and weights from 8 to 120 lbs. With Type-C charging, the remote lasts for 45 days, the e collar can last up to 20 days on training mode and 15 days on anti barking mode.