Fosmon USB Home & Travel AC Wall Charger & Micro USB Transfer/Charge Cable for the Samsung A157 (AT&T) - 1000mA / 1 Amp Output Use it with any USB powered device, simply connect the USB cable to your Samsung A157 and then to the Fosmon USB Home & Travel AC Charger The Fosmon USB Wall Charger automatically adjusts to ANY voltage in the US, Europe, and Asia - No need for expensive voltage adapters when traveling abroad ! Designed to work with a large variety of mobile phone and accessory device brands that charge via USB such as BlackBerry, Apple, LG, Samsung, Nokia, Alcatel, Huwawei, BLU, Motorola and More ! Sophisticated IC circuit design with over-charging protection means that charging will automatically stop when the battery is full and avoid damaging your battery. Red Status LED shows when charger is receiving power and everything is connected properly.