This device alerts you with a light and alarm sound when it detects an earthquake of intensity 4 or higher or a power outage. It can also be used as an SOS buzzer in emergencies. It comes with a neck strap, so you can keep your hands free. Size (mm): 60 x 78 x 29 Weight (g): 90 Charging time: Approximately 18 hours Lighting time: During earthquake/power outage: Approximately 10 minutes, SOS: Until the battery runs out Power supply: AC100V 50/60Hz Power consumption: When the lamp is on: 0.6W, When the lamp is off: 0.05W, During charging: 0.5W Built-in battery: Nickel-hydrogen battery (2.4V 700mA) Use in wall outlets. *Cannot be used with power strips, etc. ■About the product Brand new, unused. The box may be deteriorated during display or storage. Please check the product photos. ■Orders, Shipping, and Payment Shipping period: We will ship within a maximum of 5 business days (excluding weekends and holidays) after your order is confirmed. Please note that we cannot offer same-day shipping due to cost reduction, so if you are in a hurry, please be aware of this. Damage during shipping: We take great care in packaging, but if there is any damage, please contact us immediately. ■Cancellations, Returns, and Exchanges Customer's convenience: We do not accept any cancellations, returns, or exchanges after your order is confirmed. Please understand the product characteristics before purchasing. Initial defects/Damage: In the event of initial defects or damage during shipping, please contact us before you rate the product. After confirmation, we will respond promptly and sincerely (exchange or refund). Please note that we cannot respond after the product has been rated. ■Inquiries Response period: Due to cost reduction, we will respond to inquiries within 3 business days (excluding weekends and holidays).