Instant purchase OK! GLOOMY Gloomy Action Speaker Operation has not been confirmed. It has been on display for a long time. Stain on the left hand (see image 3). Sun damage on the hands, and scratches/deterioration on the battery box and lid (see images 5 and 6). No box or instruction manual. This is a very old item, so please purchase only if you understand this. Excerpt from the product description: ​───────​───────​─────── Power: 3 AA batteries / USB power Input: 3.5mm stereo mini-plug Speaker impedance: 8Ω Speaker used: 50mm full-range dynamic type Maximum output: 3W (at 10% THD) *This product only supports devices with a φ3.5mm headphone jack. Size: Approximately 270mm in total length Material: Polyester/ABS/PVC *Age 15 and up. *Please prepare a music player with a φ3.5mm stereo mini-plug, batteries, etc., separately. *Adjust the volume on the player side. The speaker does not have volume control. *The movement changes depending on the playback volume. It will not move during silent parts of songs or at low volumes.