Regular power banks are very popular used in recent years by its portable size, many colors options and a qualified emergency battery backup, we supports logo printing and laser engrave and different cable/adapters Minimum order quantity: low as 100 pieces 1. High-compatible power bank with electronic devices Works with all mobile phones, iPhone 4, Nokia, Moto, Samsung, Sony, HTC and GPS, PSP, NDSL Works with iPad 2/Samsung Galaxy Tab 2. Capacities: 2200/2600mAh high-quality Li-ion battery