Antoble AC / DC Adapter Charger for SONY SRS-BTX300 BLK WC BC SRSBTX300 SRSBTX300/WHT Universal Bluetooth Wireless Portable Speaker System Power Supply Cord 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. Short circuit Protection. Light in weight and with heavy-duty cable-wire. Build in Dynamic IC, Charger IC & Power fuse for rapid charging and over charge protection. Antoble product has a 30 day Money-Back Guarantee and a 1-year limited warranty.