1) High-capacity LiFePO4 batteries, Cycle Life= 1500 Cycle. 2) High compatibility, suitable for most digital products. 3) USB output (5V), can supply charging for digital products like mobile phones, PDAs, PSP, iPods, MP4... etc. 4) Power Over Ethernet(POE) can transmit the data and power at the same time to simplify the wire set. 5) Intelligent circuit design with over-charging, over-discharging, and short circuit protections. 6) Built-in adapter allows wide AC voltage range (100~240Vac).