【The best gift for dog lovers with anti-bark collar function】 Humanized and painless sound, vibration and shock Can adjust the sensitivity, vibration and shock levels Intelligent microprocessor differentiates your dog’s barking Quick-release heavy-duty plastic buckle Premium quality nylon collar with reflective strips to keep your dog safe Deposit before use 1. Please adjust the collar to a suitable size, make sure the paws touch the dog’s skin, too loose may not respond, too tight may damage the skin. 2. This barking dog collar should only be used on healthy dogs over 10 pounds for 6 months. 3. Do not wear it on the dog for a long time. Avoid leaving the collar on your dog for more than 10 hours a day. 4. Don’t let your dog sleep with it, it will trigger when he yawns. 【Package Included】: 1×receiver, 1×nylon belt, 1×USB charging cable, 1×test bulb, 1×user manual