Upgrade your home security with the advanced features of the DY-ML300A Wireless Doorbell Button Anti-theft Alarm. Check out its parameters:

• Working voltage: DC3V CR2032
• Quiescent current: less than 1 microampere
• Alarm current: less than or equal to 10A
• Coding method: 1527 330K
• Working frequency: 433MHZ +/- 75KHZ
• Wireless distance: Up to 100 meters in an open environment
• Working environment: -10-50 degrees Celsius
• Working humidity: Maximum 95% RH
• Dimensions: 50x13mm

With its long wireless distance, anti-theft alarm, and compact design, this doorbell button adds both convenience and security to your home. Don't compromise on safety – invest in the DY-ML300A today!