Check the listing for details. Rechargeable Dog Bark Collar Adjust. Sensitivity Beep, Vibration, Optional Shock. Condition: New. Listed at 29.95 USD. New- open box. Item has been charged for testing NBJU Rechargeable Dog Bark Collar, Anti Barking Collar with Adjustable Sensitivity and Intensity Beep Vibration, Optional Shock Function for Small Medium Large Dogs-No Remote Features & details Humane Bark Collar: With vibration beep function,shock mode is optional,you can customized this bark collar as a dog shock bark collar or no shock bark collar No False Triggers: This Bark collar has a strict false barking detection function, activated only when your dog is barking Quick Rechargeable Electronic Collar: This bark collar get a full charge in 30min and works about 15 days Fits Most Dogs: Adjustable for Small, medium and large dogs, you can just adjust the strap according to the size of your dog Waterproof Function: The bark collar is resistant to rain, snow and mud splashes. You can walk with your dog indoor and outdoor in any weather