... up 6. prompt sound for each alarm.6.with keyboard to program each function 7. in- ... , customized. Adaptor choosing: two round pins, two flat pins, three pins customized3. Wireless receiving distance in open ... internal :95dB, external siren: 110~120 dB6. One control panel with one internal siren: working voltage:+9 DCV,200mA.7. ... side,we can repair or change a new one for customers if that is notcaused by ...