The BC-50B collar is water-resistant and is powered by a 6-volt battery (included). PRODUCT INFO: Collar Receiver Water-resistant Measures 2" wide x 1.25" tall x 1.25" thick Receiver weighs 3.5oz Nylon strap Features 7 levels of stimulation Includes 6v alkaline replaceable battery Designed for any dog 20-200 lbs Availability: Usually ships the next business day. BC-50B$39.99     Can't find what you need? Try our affiliate listings below: Get The FREE Dog Bytes newsletter. Name: Email: