EXTENDS HOT-SHOT PROD USE - This rechargeable battery pack holds a high amount of charge and extends the length of time which the prod can be used. COMPATIBLE WITH HS2000 & SABRE SIX RECHARGEABLE PRODS - Fits Hot-Shot HS2000 or Sabre Six Rechargeable Electric Livestock Prod (sold separately) EASY TO ATTACH - Snaps onto and detaches from Sabre Six or HS2000 handle unit easily. SAVE MONEY - This rechargeable battery pack save you money over time compared to the use of disposable batteries. USE MULTIPLE PACKS FOR CONTINUOUS USE - Use multiple battery packs for continuous use of your Duraprod product.