Sporting 2X 2550mAh Li_ion Battery External Dock Home Wall USB Charger for Sprint/Boost Mobile HTC EVO Design 4G Phone * For Sprint/Boost Mobile HTC EVO Design 4G Battery Charger Accessories . * Package includes : New 2550 mAh Rechargeable Li_ion Battery X 2. * Travel Dock USB/AC Charger X 1. * Compatible with: HTC EVO Design 4G (Sprint/Boost Mobile) * Accessory only, cell phone not included.