Question about Hombli Smart Smoke Detector

No, the siren of the Hombli Smart Smoke Detector cannot be completely deactivated, so only an app notification is issued. The siren is an integral part of the device and sounds loudly (over 85 dB) when smoke is detected. However, you can mute false alarms with the Hombli app, but the siren will always sound initially before you can mute it.