Hotline Wall Phone - Red Wallmount Cabinet There is no external power

There is no external power source required because the Bluetooth Adapter gets it’s power from the RS232 interface on the solar controller

Industry leading facial recognition

This Headset works best with their respective systems when operated in conjunction with an Analog Port Adapter

11b/g/n 150Mbps Outdoor WLAN AP/Bridge/Router 12dbi patch antenna

Hotline Wall Phone - Red Wallmount Cabinet There is no external powerHotline Wall Phone Red Telephone Line Powered Hearing Aid Compatible Amplified Handsets Rotary Handset Volume Control 1 32digit Programmable Speed Dial Number Touch Tone And 10 20 Pps Pulse Dialing Nonvolatile E2 Memory (no Batteries Required) Restricts Fraudulent Calls From Hand Held Dialers Available In Red Or Ash Optional Q170600 Ringer Operates On A C. o. Line Or Analog Pabx ksu Extensions Ring Detection (will Not Dial On Incoming Calls)