I purchased this to take photos with an external camera, but I am selling it because it is not compatible with the iPhone 17 after I changed models. I have used it a few times, but there are no noticeable scratches or stains. I don't think the battery is depleted either. Included items: Main unit ← Used 2-3 times. Magsafe magnet ring that can be attached to smartphones that do not support Magsafe Power cord (for charging) The above two items are unused. I bought a slightly more expensive one, so the image quality is very good. Mirroring starts immediately with instructions, so it's easy to understand. Quoted from the purchase source below: The selfie monitor M4 supports a wireless function that can be used up to 30m away, allowing you to control shooting from a distance from the device. No additional remote control is required. You don't need to touch your smartphone, making it ideal for vlog recording, selfies, group photos, video recording, live streaming, and TikTok shooting. Please note: The delay in 4K recording varies depending on the smartphone model: ・iPhone video recording: 4K 24Hz without delay, frame rates above 24Hz may cause interruptions due to iOS limitations. ・Android video recording: 4K 60Hz without delay. (Recording will be smoother with higher-performance devices, and the video may stutter if the system version is low, as specifications and permission settings vary by smartphone manufacturer.) *However, using the "Blackmagic Camera" app allows for smooth 4K 60Hz or even 120Hz recording on any smartphone model. *Wireless connection requires that the device supports screen mirroring protocols such as AirPlay (iOS/macOS) or Miracast (Android/Windows). *The distance may be less than 30m due to physical obstacles such as walls. Retail price: 12,980 yen