Residential Fire Alarm Smoke Detector (Photoelectric Type) (Battery Operated, No Interlink) (With Alarm Sound and Voice Alarm Function) Manufactured by Panasonic Type: Smoke Detector - Installation Location: Ceiling/Wall - Estimated Battery Life: 10 years - Weight: 80 g - Country of Origin: Made in Japan Thank you for looking. This item was used from February 2026. It is no longer needed due to circumstances, so I am selling it. It was used for about 1 month and its operation has been confirmed. The battery will be removed and included in the package. Only the main unit and battery are included.