Commax Interphone TP-1L Intercom

Recommended for hospital, guard station, and office environment.1:1 paging and talking feature. Convenient & Flexible installation by adopting 1.5 batteries. 1:1 Intercommunication (mutual call). Flexible and variable installation Features: Power source: DC6V, 300mA or 8 AA batteries (4AA batteries per handset, **batteries and power supply not included**) Mounting type: wall surface-mounted type Idling current: 10mA Maximum current: 40mA Temperature: 0ºC ~ 40ºC (32ºF ~ 104ºF) Wiring: Invisible 2 wires (cable not included) Effective Distance: 2000 meters / 6500 feet (1.25 miles) (Ø0.65/22 AWG) Dimensions: 98(W) x 208(H) x 42.7(D) Distance: 100m(0.65Ø)