TNSO 5000 mAh Ultra Slim Mobile Device Charger (White Only) High quality polymer battery, over 500 times life cycle. Suitable for nearly all kinds of mobile phones and devices that have USB connection. Precise IC protector to safely avoid over-charging, over-discharging and short circuiting. Built-in proprietary software to control and regulate temperature, voltage and current multiple protection, safe and high efficiency. Charging Cable included