Logitech, purchased on Amazon. Comes with a dedicated mesh case. Retail price: 6,743 yen. Functionality confirmed, batteries included. Disinfected and cleaned, no box. *Slight stickiness due to aging of the coating. *As a bonus, I'll include an HDMI adapter (for USB port) which is convenient for presentations. ◼️Compatible with Windows Vista/Windows 7/Windows 8/Windows 10 or later. ◼️Size: W37.8 x D115.5 x H27.4 (mm) ◼️ - The bright laser pointer clearly indicates which part of the material you are pointing at, regardless of the room's brightness or the type of display. (Color: Red) - With a wireless range of up to 10 meters, you can walk around the venue and give an active presentation while operating PowerPoint. - The wireless receiver can be stored in the main unit, making it convenient to carry. - Intuitive PowerPoint operation is possible thanks to the easy-to-understand button layout and shape. - Comfortable operability is achieved with a smooth surface material and form that fits in your hand.