Aluminum alloy panel, metal button; Dimension(L×W×H): 86×86×20mm(3.39×3.39×0.79″).
Wireless indoor siren
Expansion Module– 5’ color screen; 20 program keys; 10 Virtual page
Professional Headset, Corded Monaural, RJ 9 for deskphones from Compatible with Yealink Grandstream AVAYA
