This is a solar-powered sonic bird deterrent. I purchased it to prevent crows from defecating on my balcony, but I no longer need it, so I am selling it. Please understand that this item has been stored at home. - Model: REP-700 - Features: Rechargeable lithium-ion battery, solar powered - Purpose: Sonic bird deterrent - Characteristics: Ultrasonic waves to prevent birds from getting used to it - Manufacturer's suggested retail price: ¥19,690 Please refer to the photos for the package and specifications.