※ Although the white-based main unit has some slight discoloration, it is a new, unused item. This is a set of 4 ELPA door chimes & alarms, model "ARA-04". It detects the opening and closing of a door and notifies you with a chime or alarm. It can be used as a chime for visitors or as a security alarm to alert you of suspicious intrusions. Installation and operation are easy, and it is battery-powered, so no wiring is required. ● Model number: ARA-04 ● Chime sound: Approximately 85dB (at a distance of 50cm) ● Alarm sound: Approximately 100dB (at a distance of 50cm) ● Power supply: 2 x AAA batteries (sold separately) ● Operating temperature range: 0°C to 40°C ● Weight: Approximately 50g (without batteries) ● Included: Double-sided tape for installation New, unused item. Reference price: 1,628 yen x 4 = **6,512 yen (tax included)**