REGIROCK 2018 Upgrade Version Barking Control Collar - Rechargeable & Rainproof No Bark Collar Sound, Vibration Static Shock - 7 Levels Sensitivity Small Medium Large Dog MULTIPLE TRAINING MODE: The dog bark collar has an adjustable sensitivity system and 3 training modes (beep/vibration/shock) with 0-7 adjustable grades. Shock mode and No shock mode are optional, effectively stop barking without hurting your dogs. 2018 UPGRADED INTELLIGENT DETECTION CHIP: Intelligent barking vibration detection chip prevents false triggering. The bark collar is only triggered by your dog's sound combined with the vibration. It won't be triggered by another dog's barking. STYLISH AND HIGH-QUALITY DESIGN: Stylish silvery cover is durable and scratch-resistant. The Bark collar is adjustable for large dogs and small dogs. With the reflective anti bark collar, you can find your dog easily even in the dark. SAFE TO PUT ON: The built-in no bark receiver features an automatic protection mode to deactivate the collar if the bark collar continues being activated for 7 times in a row within 1 minute, it will enter sleep mode for 1 minute to protect your dogs. SAFETY: Get a top quality no bark collar at an affordable price and never have to worry about it. If you're unsatisfied with our products, please contact us directly, we'll issue you a full refund or a replacement.