Apr 04, 2026 19:00:00

I tried out Sanwa Supply's 'Oshikatsu Mouse,' an ergonomic mouse that lets you decorate the hollow space of your favorite idol's merchandise with items related to your favorite idol.

Sanwa Direct's ' Oshikatsu Mouse 400-MAWB217BK ' is a mouse that supports ultra-fast charging, lasting about two months with just a three-minute charge, and features a three-dimensional

ergonomic structure that reduces hand fatigue. Its vertically elevated structure, characteristic of ergonomic mice, allows you to display small figurines or badges, making it a mouse that lets you engage in ' fandom activities ' while using your PC. I decided to try it out to see what it was like.

Display your favorite idol right at your fingertips! Introducing a 3-minute charging mouse for your idol-related activities.
https://direct.sanwa.co.jp/contents/news/item/400-MAWB217BK.html

400-MAWB217BK Fan Mouse Wireless Mouse Bluetooth Ergonomic Ultra-Fast Charging 3-Minute Charge for 2 Months of Use 5 Buttons 2.4GHz Wireless Display Case Black | Available at Sanwa Direct Online Store
https://direct.sanwa.co.jp/ItemPage/400-MAWB217BK

This is what the outer box for the 400-MAWB217BK looks like.

The package contains two items: the 400-MAWB217BK unit itself and a USB Type-C cable for charging.

The 400-MAWB217BK is a three-dimensional ergonomic mouse, but its most distinctive feature is that the rear of the body is covered with a transparent cover, allowing you to see inside.

When viewed from directly above, it looks like this, with dimensions of 7.1cm wide x 10.8cm long x 6.8cm high.

The actual weight is 100g. Note that the receiver located inside the rear cover was removed before weighing.

There are two side buttons on the left side.

On the right side, the top is the left-click button, the bottom is the right-click button, and in between are the cursor speed toggle button and the scroll wheel.

This is what it looks like from the back.

The bottom of the device has a power switch and a connection selection button, as well as a QR code for the instruction manual.

The 400-MAWB217BK is designed to minimize strain on muscles and wrists, making it less tiring to use during long hours of computer work. It also features silent switches for the click buttons and scroll wheel. The following video clearly demonstrates how the click buttons and scroll wheel on the right side of the device, and the side button on the left side, function.

This is what the click sound of the 'Oshikatsu Mouse,' which lets you store your favorite idol in your mouse, sounds like - YouTube

The 400-MAWB217BK is rechargeable and can be charged by connecting it to the included USB Type-C cable power supply. The 400-MAWB217BK uses supercapacitor technology, and it is said that a 3-minute charge with a 5V/2.4A or higher charger can provide approximately 2 months of use (approximately 40 hours of continuous operation).

The transparent cover on the back of the unit can be easily removed.

Inside the cover was a receiver for connecting to a PC.

Inside the transparent cover, there is a hollow space measuring 5cm wide x 4.5cm high x 2.7cm deep at its widest point. By storing your favorite items in this space, you can use it as a 'fan-activating mouse' that allows you to always look at your favorite items while operating the mouse.

I tried putting in a Chikorita figure I got from Furuta Confectionery's 'Pokémon

: The Three Pokémon of the Journey ' chocolate egg, and it fit perfectly, base and all.

This is what it looks like when you hold it with the figure inside.

I removed the base and put in just Chikorita, and it fit straight in.

I also tried putting in various other items I had on hand. When I tried putting in Hogeta from 'Pokemon Kids Paldea Region Edition,' the size was slightly off and the cover wouldn't close. The hollow area is quite small, and the cover is rounded to make it easier to grip, so even if the height and width seem to fit, there are many cases where the cover won't close. According to the official page, anything that is a rectangular prism with dimensions of 2.5cm wide x 2.5cm high x 1.6cm deep will fit without any problems.

Even the larger and medium-sized pin badges didn't fit properly. It looks like I'll need to get some smaller pin badges.

I also tried putting in a relatively small rubber strap, but unfortunately, that didn't work.

The gacha-gacha keychain fit inside the cover, but it fell over because it wasn't designed to stand upright. It would be good if there was a way to make it stand upright.

The small figurine that came with the bottled drink fit nicely, although its feet were slightly raised. If you're going to use the 400-MAWB217BK as a 'fan activity mouse,' it's recommended to prepare small figurines or miniatures from gachapon or candy toys, or small pin badges.