• Number of Channels - 4 Duplex Channels
• PBX Interface - KX-TDA0143 (4CS) or KX-TDA0144 (8CS)
• Standard - DECT (Digital Enhanced Cordless Telecommunication).
• Frequency: 1.88GHz to 1.9GHz . Approx 250mW RF transmission power
• Operating Range  Up to 300m outdoors (line of sight). Up to 50m indoors
• Number of Wires  4
• Max. Wire length  1Km with 0.6 mm in diameter Cable (AWG #22)
• Power Source  Powered by PBX
• Dimensions (HxWxD)(mm)  140* x 140 x 37

* Height of unit increases to 245mm when antenna is fully extended