Detailed Product Description wireless alarm system, home alarm system, security alarm system, burglar alarm system, auto-dial alarm system, anti-theft alarm Features:Smart looking, Small size. DIY. 1 ... (10 second), it can be recovered.When received alarm message, it speaks as you spoken. 6. ... power: >36 hours. Auto-switch if AC power is off. 7. Telephone manage the alarm system, convenience 8. Phone ...