BarkLimiter Deluxe, built with proven Tri-Tronics dog training technology, is an intuitive electronic bark correction device. It's compact and lightweight, due to its slim, rechargeable lithium-ion battery (up to 3 months battery life). Even with integrated stainless steel contact points optimized to work on all dog breeds and coat thicknesses. It uses accelerometer-based bark identification to distinguish between barking and other vocalizations. This virtually eliminates false corrections caused by paw scratching or scraping of external surfaces or other noises like the barks of nearby dogs. Measures the number of barks. You have the option of setting BarkLimiter Deluxe to correct barks using vibration for an alternative to stimulation. Includes BarkLimiter Deluxe with rechargeable lithium-ion battery, 3/4" black collar strap, charging clip, AC adapter, USB cable and manual.