10000mah Advertising sign with 2 usb ports New streamline design to improve the product's heat dissipation, Aesthetic feeling with practicability mingled Product Feature of Advertising sign : 2 USB outputs, it can charge 2 mobile phones at least. Output automatic identification fuction, with the access device automatically adjust the current. Overvoltage protection fuction, automtically cut off the power supply when the external voltage is too high. High efficiency and energy-saving LED backlight screen, lasts light up for 100 hours Specification: Model number: L16 Color: Black Battery type: Polymer lithium battery Image size:130*90mm Dimension: 170*128*47mm Socket type: USB Output: 5V-2A Input: 5V-2A Weight: 800g Shell material: Acrylic Warranty: 1 year Certification: UN38.3/MSDS/CE/ROHS/FCC/PSE Accessories: 2 in 1 Charging cable, Manual, warranty hangtag, inner box Applicable places: hotels, restaurants, cafes, KTV, company front desk, and other public display places. Product Show: Package: Certificate: Deliver Way: Payment: FAQ: 1. Shipment way: DHL, UPS, FedEx, EMS,etc. Once we ship the goods, we will provid you the DHL/UPS tracking number next day. 2. Do you offer logo prints on the product? Yes, we do customized product and have rich experience for OEM/ODM. 3. How about the shipping cost? We have long cooperation relationship forwarder and the most competitive price in the market.led advertising charger manufacturers website:http://www.restaurantchargingstation.com/restaurant-power-bank/led-advertising-power-bank/