Safer humane training - The dog bark collar offers 4 training modes and 8 adjustable sensitivity levels to tailor training to your dog. - Press the M button for instant quiet time. - For best results, refer to the user manual prior to use. Smart bark detection - Equipped with an advanced barking recognition chip, the collar activates on barking and vocal cord vibrations. - No remote is needed, providing a streamlined training experience. Builtin protection mode - A smart display shows current status and battery level. - If the collar is activated 6 times in a row, it temporarily shuts off for 30 seconds to guard your dog from overcorrection. Fast charging and waterproof performance - Full recharge in just 2 hours, with battery life up to 20 days. - IP67 waterproof rating allows training in various environments, from the beach to the backyard. Use scenarios - Indoor home training: reduces nuisance barking without requiring a remote or constant supervision. - Outdoor walks or parks: helps manage barking along trails with automatic detection and adjustable sensitivity. - Beach or yard sessions: waterproof design and quick charging support longer training sessions in diverse environments.