... is to connect a computer (desktop, laptop) for power, need no extra power adapter.* IEEE 802.11B/G compliant.* Support any VoIP ... :* Color: Blue* Housing: Plastics* Input Voltage: DC5V-15V* Consumed Power: Less than 1.5W* Frequency: 2.4Ghz* Support Wifi model ... : AP Client* Three parallel DC power interface: DC2.5 power hole, DC2.0 power plug, USB interface (for taking electrical)* ...