Powerology has proffered 10000mAh Crystalline Series Power Bank which is a super compact and portable power source. This powerhouse is supported by a 10000mAh high-capacity battery with 35W Power Delivery Technology that can easily charge your device. To alert you about the remaining charges, it is provided with a digital display. Also, this device can charge up 2 devices at the same time. You can completely be sure about safeness of this product Since it is fire-retardant, the charging process occurs securely and reliably.