For dogs 18 kg and up. Fits neck sizes up to 71 cm. 10 adjustable levels of progressive static stimulation. Perfect Bark™ sound & vibration sensors - only your dog's bark causes stimulation. Automatic Safety Shut-Off: Stimulation stops after 80 seconds. Waterproof. Uses 1 x 3 Volt battery (included). Battery usually lasts 3-6 months. Low battery indicator. Includes: Bark Control Unit. Adjustable Nylon Collar. Battery (PetSafe® RFA-188). Operating Guide.
