Model: DB1 Use of premises: Home office villa hospital school factory Receiving distance: 150M Remote (in open area) Battery mode: 12v 23A battery (not include battery) Waterproof: yes Ring tone: 38 ring tones working frequency: 433MHZ Power supply: 110V-220V-240V Power Source: AC,Battery Smart home platform: none Certification: CE,FCC Origin: Mainland China Brand Name: eMastiff Alarm: No Item Type: Wireless Doorbell Connection Type: WireLess Feature: None Display: None Power: Electric Supply Itercom: No
