Умная сирена с приложением, система защиты дома

Wireless frequency: 2.4GHz Network range: 55M Wireless protocol: 3.0 IEEE 802.15.4 Dimension: about 68x68x33mm/2.68x2.68x1.30inch Net weight of product: 140g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Sound Light Sensor Smart Alarm Siren Siren Sound Light Alarm 90dB App Remote Control Home Protection System Feature: Siren: Detecting in the environment in time. Siren alarm louder than 90DB. Alarm Notifications: Smart phone will get instant notifications when siren alarm triggered and check the log on APP. Widely used in home, kitchen,office, etc. Fast Response: Ultra-fast response, anti-interference ability, ultra-low power consumption and cost-effective. Supporting 5V 1A USB port power. System: Trigger alarm; Make sound and light; Remote on/off via APP. Automatically restore the previous settings with memory function when network or power off reconnecting. Satisfaction Guarantee: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly. 1 x Alarm(No battery) 1 x Data cable 1 x Instructions 1 x Sticker Screw Pack 1 x Packing box