【Humane Training Modes】The no bark collar has 3 working modes(beep, vibration, shock) to effectively stop barking without hurting your dog. Each mode has 4 adjustable grades (0/L/M/H). you can use them all together or turn off vibration and shock (0 grade) to fit your needs. 【Smart Identification & Visible Digital Display】The inner microprocessor will detects your dog’s barking precisely and filter other unrelated sounds to prevent false triggering. Only your dog’s sound combined with vibrations of sound will trigger the sensors. The visible digital display screen shows the gears of vibration, shock and sensitivity and the screen will not be blocked by dog hair. 【Rechargeable and Waterproof】The rechargeable bark collar is charged through a USB cord; 1-2 hour charging time offers you 12-14 days of use. Waterproof design allows you walk your dog in any weather, but not in the swimming pool. Allow your dog enjoy a comfortable swimming released from anti barking collar. 【Peace Neighbor Relationship】The anti-barking collar solves all problems resulted by your dog’s barking. when you walk your dog outside or traveling, your dog won’t bark to other dogs or scare the people. When midnight or early morning, your dog will not bother you and your neighbors’ sleep. 【Adjustable Nylon Bel】Adjustable collar length from 6.5’’ to 24’’ make this no-bark collar suit for small/medium/large dogs. You can adjust a suitable size for your dogs. Dual-retention plastic buckle requires 2 points of pressure to unlock, designed to keep the collar remain on your dog. The 2 reflective strips sewed in the belt of collar enable you to find your dog in the dark environment.