UL certified. 2200 mAh rechargeable lithium ion Grade A battery device is enough to charge smartphones, MP3 players and more. Reusable power bank charges via USB cable (included) which can recharge the battery backup or be used to charge up devices with a micro-USB input such as Android smartphones from Samsung, Motorola, HTC, Nokia, and others. Push on/off power button for flashlight function. Input: 5V/550mA; Output: 5V/1000mA. Media device not included. 0.875" H x 1.125" W x 3.75" L. Imprint area is 0.38" H x 2.50" L on 1 color only per side and includes a 1 Colour Imprint on 1 Location. Packaging: Bulk. Please call for rush delivery availability or multi-colour/multi-location imprints.