Type:Call equipment Name:high quality hospital wirless nurse calling system call button system button Signal Distance:200-300m in open area Communciation:Wireless button Cord length:30cm(default),60cm,120cm display size:53*35*3cm watch size:50*41*16mm coridor light size:78*78*60mm button Dimension:80*80*10mm button Material:PC coridor light color:Red, Blue, Greeng system Show More