... case of alarming, automatically playing after you pick up your phone.5. Any of the detectors can be door bell when ... . capacity for wireless device:51pcs;9. wired device:7pcs10. Alarm phone numbers:6 groups11. Volume of siren: ≥80dBspl,(internal ) Standard package ... PIR detector,1 door/window contact, 2 remote controls, 1power supply, 1 phone line, 1 user manual.