1. Intelligent linkage switch,At night due to security hazards caused by sound and light alarm alarm, immediately open all lights in the home, in order to view or scare off intruders 2 .APP remote operationInterface clearly display,Alarm duration/volume can be customized, with graffiti smart products Custom automation, siren warning, 24-hour guard. 3. Remote alarmAccident without delay,When the elderly feel unwell or have an accident, press the emergency button to immediately alarm, and the alarm information be immediately pushed to the mobile APP. 4. Multi-scenario application,Easy installationTool free installation, with 3 Meter double-sided tape, you can attach the product anywhere. 5. Small, safe and practicalFlame-retardant housing, Radiation-proof, heat-, impact- appearance material. Specifications: Product Name:Intelligent sound and light alarm Power Supply:USB Wireless Buzzer:Built-in 85db Transmission distance:80m (open) Transmission sensitive:-96dBm Voltage:Working temperature:5V/1A-10c-55c Less than 95%RH Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:White Material:PC Specification:Zigbee Package Contents: 1 * Intelligent sound and light alarm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.