This is a Sony wireless remote commander shooting grip. Model number is GP-VPT2BT. Please check the manufacturer's website for detailed specifications. It has only been used a few times indoors and is in good condition. There are no missing items or accessories, and it can be used without any problems. Please refer to the images for product confirmation, and feel free to ask any questions in the comments section. I haven't found the time or opportunity to use it, so I'm selling it for 6,000 yen (including shipping)! Don't miss this opportunity!