NANSHI Portable Emergency Safety Alarm Wide Voltage Daily Use Fire Alarm  (Wall Mounted)

1 COMPACT AND DURABLE: The compact and lightweight design is easy to hide or carry. Made of high strength ABS material, the alarm is durable and long lasting. 2 MULTIPLE ALERT METHODS: Supports SMS and phone call alarms, with SMS alerts intermittently reminding the status of the host via voice, contributing to continuous safety monitoring. 3 AUTOMATIC LISTENING: Activates alarm if the volume exceeds 40dB within 10 meters, and the alarm will automatically dials, calls, or sends SMS to the pre set numbers. 4 REMOTE MONITORING: Enables monitoring through a communication tool that can make calls when the device is operational, allowing you to hear the surrounding conditions within 10 meters after connecting. 5 VERSATILE USAGE: The safe sound alarm is not only suitable for cars as a theft deterrent, but it's also an excellent home surveillance, proving itself to be a reliable security protective device.Item Type: Safe Sound Alarm Material: ABS Battery: 3.7V Lithium Battery 40mAh (with built in battery for shipment) Working Mode: SIM GSM Working Frequency: 850mhz, 900mhz, 1800mhz, 1900mhz