Package contents: 1 * PURIDEA power bank, 1 * Micro USB Cable (Charging only. Not for data transfers), usage manual. Slim & sleek: With only 17mm thickness, it will fit easily in your pockets and bags. Comfortable to just put behind the phone when needed and use the phone with the charger in your hand. High protection: When the device is fully charged by the power bank, charging will stop automatically to save the power and protect the device When the power bank is fully charged, charging will stop automatically to protect the power bank. Auto-charging design: When connecting the device with the power bank, it will charge automatically, no need to press the ON/OFF button. 12-month product quality warranty.