Support Amazon Alexa, Google Assistant, IFTTT and other intelligent voice control. It needs to be opened on the TUYA APP and corresponding fees need to be paid. Sensors name can be edited on the panel Sensor Online/Offline Display Added sensor online detection (an alarm will be triggered if the panel fails to detect the sensor for more than 72 hours) Two-Way FSK Communication Technology Wide Coverage 200m Two-way FSK communication technology coverage.100m Other communication technology coverage. The volume of alarm sound and operation prompt,and the display brightness of the screen can be adjusted. Built-in Siren & Buzzer: Loud enough to scare off intruders Panel alarm sound volume and operation prompt volume are adjustable. Two Way Conversation Overthe Panel 5 Groups alarm phone number.5 Groups of SMS alerts. 24/7 Protection for Your Peace of Mind Real-time Monitoring & Instant Notification 5000mAh Ultra long battery life 6 languages can be switched at any time English, German, French, Italian, Spanish, Chinese. Kindly Remind: If you want to assemble your own alarm kit, please click on the picture below to select the models you want to purchase together.