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)