Ultra Thin Credit Card Shape Power Bank. Ultra-thin, light weight credit card powerbank is perfect for anyone !The price is included 4 color process imprint logo on both side. Easily slips into your pocket .Features a 4000 mAh lithium polymer battery, Built in cable,Output for 5V1A ,compatible for all smart phones like lighting ,Samsung, Blackberry ,Pixel and Nexus . support the logo by silkscreen print, full color print, UV full color print .this charger makes a great tech accessory that customers, clients, and employees will appreciate having when they need to charge their devices. It's nice giveaway gift for travel, camping , hiking, and emergency power charger for insurance,bank, construction, hospital, university ,sports,organization and business office ,school , golf club.