Sierra Wireless Overdrive Pro 3G/4G Mobile HotSpot Standard Red LED Wall / AC / Home Charger! An outstanding quality charger at a reasonable price up to 90% off the original price! Official 2 stage accurate and safe charger, ensures a longer lasting battery, always. The first stage of this charger offers fast charging until 95% bettery life. The second stage of this charger is "trickle" charge and fully optimizes your battery to 100%. Specifications: USA Plug, 110-240vac, 500-700ma, 5ft cord.