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Home alarm system
DoorBell
Key Finder
Bluetooth adapter
Smart Wifi system
Amazon Echo services
Diffuser
CMS
Apps
Mold + injection molding
New products
Specification:
No battery required wireless doorbell button
Wireless Range: 600 ft in Open Air; 100~300 ft with doors and walls
Working Frequency: 433.92 MHz±280KHz
Working Temperature: -30℃~70℃