Replacement Power Supply/AC Adapter for Boss Multi-Effects Pedals: Guitar Multi-Effects ME-20, ME-25, ME-30, ME-33, ME-70 & Bass Multi-Effects ME-20B (Aftermarket)*91 Antoble products are made with the highest quality materials tested by manufacturer to match and/or exceed specifications of OEM products. Industry Quality : Over voltage protection, Over heat protection. Build in Dynamic IC, Charger IC & Power fuse for rapid charging and over charge protection. Total cord length is extended to 6.5ft / 2M. Antoble product has a 30 day Money-Back Guarantee and a 1-year limited warranty.