- Metal body, with handset or hand free,
- One button push to talk
- LED beacon flash when receive call AC 230V or 110v power supply for beacon
- With buit-in loud speaker
- Wearable, waterproof IP55, moisture proof, Vandal resistant and tamper-resistant hardware
- Lightening protection to ITU-T K.21
- Auto release the line when other side cut off
- With 7 minutes time out.(optional)










