Prevent nuisance barking and protect your dog from the risk of overcorrection with this SportDOG Brand™ no-hassle bark collar. The fully automated stimulation control needs no setup or programming, just drop in the battery and fasten the collar around the dog’s neck. The stimulation continues to rise as long as the barking continues and automatically resets after 30 seconds of silence. Unit is waterproof. The SBC-6 offers six levels of harmless static stimulation, and fits 6"-28" necks. It uses a 6-volt lithium battery module (included). Size: 2.1" x 1.1" x 1.1". Weight: 4.6 oz.