NEO NAS-AB02WT WiFi USB Siren Alarm with Temperature & Humidity Sensor, AB02WT

1. Multiple Sound Selection
2. Power supply: Mini USB , 5V-1A
3. Backup power supply: CR123A x 2 (not included)
4. Sound intensity: 90 dB
5. Wireless type: 2.4GHz, 1T1R
6. Protocol: IEEE 802.11b/g/n
7. Wireless range: 45m
8. Operating temperature: 0 - 60 degrees Celsius
9. Free APP: Tuyasmart or Smart Life
10. Support systems: Android and iOS
11. Workes with Alexa Echo and google home
12. Product size(D*W*H): 68x68x30mm