GiftU corporate gift expert, provides customised USB Power bank, mobile charger, solar charger and business gift set, small order welcome, quality assurance - Dual operation, AAA battery or USB cable charge - included USB connector, can be use for iphone3/4 or ipad - Cell type: li-theumnn battery - Input: DC5.0V-650ma(Max)/Output: DC5V/1000ma(Max) - Built-in Microprocessor automatically detects battery voltage and charging time. - Samsung or imported battery with Rohs & CE standard , quality guaranteed