walkie talkie

9) Ear / microphone jack

8) Key Tone Function

7) Low battery Alert Function

6) Scan / Call / Monitor Function

5) Electronic Volume Selecton

4) PTT (Push To Talk)Function

3) 5Km -8Km Range with UHF FM Transmission

2) 22 free Channels for US

interphone is very simple and convenience products with high qulity and low price .