Car Charger with USB port for Huawei S7 and S7 Slim and MediaPad (T-Mobile Springboard) Tablet Car charger adapter charges your Huawei IDEOS S7 or S7 Slim or MediaPad (T-Mobile Springboard) Tablet or other devices from any standard cigarette lighter in any vehicle. Use together with USB charging cable to charges Huawei IDEOS S7/S7 Slim Tablet by a Laptop Patented circuit board designed to protect your valuable gadgets from short circuits. Compatible with all electronics that use a USB charging cable. Perfect for Huawei IDEOS S7 and S7 Slim.