Brand Name: eMastiff Origin: Mainland China High-concerned chemical: None Certification: CE Certification: FCC Certification: RoHS Certification: weee Model Number: Tuya WIFI Door Sensor Smart home platform: alexa Smart home platform: Tuya Smart home platform: Google Assistant color: white battery: 2pcs AAA (not included) Wireless Type: 2.4GHz(not support 5G ) Protocol: IEEE 802.11b/g/n Type: Door & Window Detector sensor feature1: support amazon alexa feature2: support google assistant feature3: support tuya APP: Tuya/Smart Life