Y-630 wrist watch pager it is convenient for the service person ... to get calls can work with LCD display together Y-630 wrist watch pager Feature 1 Use SCM digital encoding technology ... Y-A1,Y-A3,Y-B3 etc4 1 pc Y-630 can work with 200 pcs buttons in max,and can ... restore last 10 calls5 Y-630 shows current time when it is in standby,with 3 ...