HTQ1003 Features: * Collar battery * Approximately 1 year supply of batteries * Kit lasts approximately 6 months * Installs in seconds * Long lasting alkaline power * Easily snaps into your RC-7 or RC-8 collar * Waterproof when installed in collar * Operates humane models RC-7 and RC-8 electronic dog fence collars * Shelf life of about 7 years Options: * Available in Single pack, 6 pack and 12 pack sizes Specifications: * 3 Volts Dimensions: * Dimensions: 5"" H x 4"" W x 4"" D