【2018 Upgrade Intelligent Chip】: Intelligent barking vibration detection instead of sound detection chip prevents false triggering. Only your dog's barking can trigger the no bark collar while other dogs' barking nearby can’t trigger it. “bark collar small dog” 【Humane & No Harm】: Our bark collar is humane and harmless. This no bark collar has 0-7 gear adjustable VIBRATION / SHOCK MODE、 1-7 gears Adjustable sensitivity and 3 training modes – sound, vibration, and static shock. You can use them all together or separately. Choose a suitable sensitive level and suitable model for your dog and effectively stop barking with no harm to dogs. “rechargeable bark collar” 【USB Rechargeable & Rainproof】: You can charge the small bark collar with your laptop or mobile phone adapter. It’s very easy, useful and Eco-friendly. You don’t need an extra adapter. Built-in 280mA li-ion rechargeable battery can last about 14 days for regular use. Rainproof in rain. You can enjoy running in the rain or even in bad weather. “anti bark collar, bark collar large dog, e-collars for dogs” 【Barking collar for all size dogs】Whether your dog is a small dog or a large dog, our adjustable barking collar can fit them properly. High-quality nylon strap with reflective stripes is easily adjustable. With no worries, it will not hurt your puppy’s neck. The maximum diameter the dog belt is 35CM，with the minimum up to 6CM for all dogs. 【AUTOMATIC AND SAFETY MODE】: The built-in no bark receiver features an automatic protection mode, if your dog barks more than 7 times in 1 minute.it will enter sleep mode for 1 minute to protect your dogs. Press any button to allow the product to re-enter active mode. The bark collar will return to active mode after being in automatic protection mode for 1 minute.