M-BL21DB XGM20DLS MNK01DBSの3シリーズのエレコム静音マウスを使ってきて、傾斜がついているものしか多ボタンのマウスが売られていないことから仕方なく購入

バッテリーになったことから軽いとかの違和感はすぐ慣れるので問題ないとして、ミドルクリックの操作感が慣れづらい

人差し指の腹の中心より指先で押すと、右チルトを誤爆してしまう

指の腹で捉える分には問題ないが、ホイールの回転数を稼ぐために指先をデフォでホイール操作に多用する人がミドルクリックを指先で押そうとするとストレスになる

角度がついていると理解して押すにしても慣れが必要

おまけのファンクションボタンみたいなのは、爆音というほどではないが親指で押す一個のボタン以外は申し訳程度の静音だったりする

あと記憶違いやYouTube側の問題だったら済まないが、なぜか知らないけどエレコムマウスアシスタント5時代ではできたチルトでのYouTubeの秒数送りができなくなっている

ソフトウェア的な問題くさいので、アップデートで再実装されるかもしれない

今までロジクールの8ボタンタイプを使っていましたが、あまりにも値段が高くなったことでこちらを購入。手のサイズ表を見てLサイズを購入しましたが、自分にはMサイズがちょうどよかったようです。手首を浮かせて作業するタイプの人は表通りの物、手首をつけて作業するタイプの人はワンサイズ小さいものがいいかと思います。

使用感はおおむね満足で、親指の位置にもファンクションボタンがあるのが非常に使い勝手がいいです。加えてチルトホイールや他ファンクションボタンもエレコムの『マウスアシスト』と言うアプリでカスタムできる事も評価点高いです。

費用対効果で考えると非常に高得点ですが、唯一弱点を言うとするならば、充電が切れるのが早い気がします。前回充電時間短かったかな？もう少し使ってみないとわかりませんが、自分は充電式より単三電池交換タイプの方が好きなので、そこだけが唯一マイナス点です。

仕事で一日中マウスを握っているので、手首の疲れが限界でこちらに買い替えました。 最初は少し変わった形だなと思いましたが、実際に手を乗せてみると、指の置き場所が自然に決まる感じで収まりがいいです。Lサイズを選びましたが、成人男性の手ならちょうどいいサイズ感だと思います。

ボタンの押し心地もしっかりしていますが、カチカチ音がしない静音タイプなので、静かなオフィスでも気兼ねなく使えるのがいいですね。個人的には、高速スクロールが便利で助かっています。長いExcelのデータやWebページを見る時のストレスがかなり減りました。

接続についても、Bluetoothとレシーバーの両方が選べるので、メインのPCとサブのタブレットで使い分けられるのが便利です。一度設定してしまえば切り替えもスムーズでした。

充電式なのも、電池の買い置きを気にしなくて済むので楽です。これまでは電池式のものを使っていましたが、重さのバランスもこっちの方が安定している気がします。 多機能すぎて使いこなせるか不安でしたが、専用ソフトでボタンに機能を割り当てられるので、自分なりに使いやすいように設定して愛用しています。

机とマウスの摩擦が強すぎて、微妙な操作がしずらくそこがストレスを感じる。

ボタンを押す、リンクを押すときにマウスを微妙に動かすだけが出来ない。

細かい作業をマウスで行う人にはおすすめ出来ない。

また、バッテリーの持ちが悪い。

比較的手が小さいと言われる私ですが。これは1番大きいサイズのこちらがしっくり来ました。

一日中使っても、そこまで疲れないかなとは思います。ただ、やっぱり手が小さいのに、1番大きいサイズなので、若干指の動きが大変になる時もありますが、そんな時は正直多くないので、OKでした。

ボタンカスタマイズもあって、1発でコピペができたり、チャッピー呼び出せたり、とても便利です。ピアノやってた人ならもっと指が器用に使えるのかもしれませんね♪

電池ではなく、充電式のため、途中使えなくなった場合、有線で充電しながら使う感じになります。はじめは親指が、小さいボタンにあたり違和感を覚えますが、慣れれば快適になります。

手の大きさ165mmでSサイズ購入。他のSサイズ商品と比較するとはるかにデカい。サイズ設定間違っているのでは？と疑うレベル。手首が浮くのでパットありきの設計なのかもしれない。

表面サラサラで指紋が付きにくく良い。

反面、乾燥肌だと滑るし大きいしでクリックするたびずっぽ抜けて握り直しとなる。

性能はプロ仕様なのに残念です。

ロジ社の２軸マウスが壊れて、新しく買い直す際に本商品を購入。

縦方向高速ホイール：いまいち。ひっかかりが強いし、奥側（画面上部移動）の場合は、同シリーズの通常ホイールマぐらいしか回らない。手前側（画面下部移動）もロジの回転を知ってしまうと、動きが悪い。

横移動のチルトホイール：Excel、スプレッドシートで１アクション、１セルの移動のよう。倒し続けることで、1セル以上の横移動も可能だが、カクカク移動して、気持ちが良くない。ロジクールの２軸マウスのような動きはできなかった。残念。

Nice materials. It tracks cleanly and works great right out of the box. What sets this mouse apart from other ethos is the buttons and body cradle you hand in comfort. This mouse is an absolute joy to use and makes my desk look nice. Buy it if you’re looking for ergo and functionality. Oh yea the materials they use don’t pick up finger oils. Game changer! 5 stars thanks Elecom

Great mouse, especially for large hands. I purchased the XL size, great fit. But the buttons/clicks are not as crisp as the Logitech MX Master 3. Good mouse over all, just be patient when you click on something.

Overall I am happy with this mouse. It's not too large or weirdly oriented like full sized ergonomic mice, but it's large enough where my hand doesn't cramp after hours of use.

The battery charge holds well enough. My mouse stays on 24-7. I use my mouse on and off, for about 12-16 hours a day. The battery lasts about a week between charges, which takes about 1 hour.

The mouse wheel does feel like it was an afterthought, but it's good if you need an accurate line-by-line scroll. The mouse DPI is really low, so it takes time getting used to if you're used to high DPI mice.

I have very small hands for an adult woman, and the size small in this mouse is both comfortable, AND actually allows me to reach all the buttons - something that could not be said for my Logi Lift mouse, which is also supposedly made for smaller hands.

I've been through carpal and cubital tunnel release surgeries, but still need to be careful with regard to ergonomics. This is the only vertical mouse (albeit it's a semi-vertical mouse) with tilt scroll wheel functionality, something I very much missed when using my Logitech Lift mouse.

The other thing I love about this mouse, is that it has the most buttons of any mouse I've been able to find in a small size. The typical mouse "suitable for small hands" has a normal scroll wheel, and at most two thumb buttons, often and infuriatingly placed in a spot that can't be reached with small hands. This issue is especially true for small gaming mice. This Elecom mouse has the two extra functions provided by the tilt scroll wheel, three thumb buttons, and two extra buttons to the left of the main left mouse button. Unfortunately, the DPI button beneath the scroll wheel is NOT programmable.

The Mouse Assistant software installs in Japanese and needs to be swapped to English. The default profile name was still in Japanese, but it was easy enough to choose "Edit Profile" and "rename" to change it to English. You ARE able to create profiles to pair with executables, which I appreciate as a gamer.

I saw a review that claimed you couldn't program the mouse to use keyboard characters. This was a bug at one point, but currently isn't true. Thanks to some awkward translations, you need to choose "arbitrary key" and that allows you to pick whichever one, two or three keyboard characters you want. I just needed to be able to pick a single character for each button, so this is plenty for me.

As for things I do NOT like about this mouse, there isn't any on-board profile memory. Close the Mouse Assistant software, and you're back to default mouse settings. If you swap to another PC, and install the Elecom software, it reads nothing from the mouse, and you have to reprogram everything from scratch. Make changes, and you need to make them across every PC or Mac. There is also no exporting a profile to import elsewhere. This is a hugely disappointing decision made by Elecom.

Another disappointing choice was for the USB cable. It is a proprietary USB-C to USB-A cable as per Elecom, yet it's completely unlabeled and generic looking, making it MUCH too easy to lose. Worse, it's also only about a foot long, and it's effectively made even shorter thanks to all the kinks introduced into it at the factory when they folded and bound it. Presumably the length was selected with some combination of cheapness and laptop users in mind - except it's on the short side even for laptop users that use the built-in keyboard. Meanwhile, both laptop users with external keyboards and desktop computer users, *absolutely* can't type and charge with just that cable. You can technically use an extension cable with it, however, the Elecom manual warns against potential fire hazards if using anything other than THEIR cable, thanks to the relative volatility of lithium-ion batteries.

Another flaw is that you can only see battery status in Bluetooth mode. I'm using this mouse with the USB dongle, since that's better for gaming, but had to waste one of only two available Bluetooth modes on this same PC, JUST so I can check to see where my battery levels are at. They could have had a battery level indication in the Mouse Assistant software for wireless dongle mode, or had it display in Windows settings, Bluetooth & Devices, which it does for the mouse in Bluetooth mode, but it was completely forgotten. Since it still shows the Bluetooth status/battery levels even in 2.4 GHz mode, I'm likely eating more battery life using this workaround.

Battery levels matter beyond not wanting to be stuck with a dead mouse at an inconvenient time. The non-removable lithium-ion battery will potentially render this mouse a paperweight in a couple of years, and that's assuming the lithium-ion battery doesn't turn all "spicy pillow" and become a literal fire hazard. Best practices (not letting the battery completely run out, and not re-charging to max levels) are impossible to manage if you don't know what the battery level IS.

Elecom would have stood out if they'd chosen to go with replaceable batteries, instead. My old Logitech G700 mice were rechargeable (albeit I couldn't reach all the buttons), and used AA Eneloop rechargeable batteries that could be charged in place, or physically swapped out. Batteries lose capacity? Buy some new Eneloops, and recycle the old. THAT is the way to do it.

Unfortunately, even Logitech went for built-in batteries in future wireless models, since it sells more mice in the long run, at the expense of needless environmental waste, and consumer dollars. I would actually have preferred a wired version of this mouse to one with a non-replaceable lithium-ion battery, but the wired Elecom mice are unfortunately all bare bone models lacking the necessary functionality of this model.

This could have been a five-star mouse, but poor decisions, such as its dependence on software instead of onboard memory, the inability to export/import profiles, its proprietary/too-short/too generic-looking-not-to-lose charging cable, and its non-replaceable battery, compounded by its lack of battery status display, are the reason this mouse is overall a 3 instead of the 5 I wanted to give it.

I'll be keeping this mouse, because there's literally nothing else in this category that fits my hands so well. Thankfully, most of the cons are only of intermittent or eventual concern or annoyance, but I hope Elecom is more thoughtful in a future iteration of this mouse, or at least they decide to offer a USB wired version.

Edit: I’ve been disappointed to experience issues with the tilt scroll wheel. It doesn’t always react, which is particularly frustating given (1) it’s one of the reasons I chose this mouse and (2) I keybind it for healing potions or spells in various video games. Left scroll wheel clicks that don’t actually DO anything get my characters killed. Immensely frustrating.

Mouse itself is 9/10. Easily the best ergonomic mouse I've ever used, fits my hand well. The buttons are gratifyingly tactile and the scroll wheel has just the right amount of heft. The sensor is also incredibly accurate and honestly pretty decent for gaming.

HOWEVER, it is utterly unforgivable to use proprietary charging cables in 2024. The entire point of USB is to be a Universal standard. It's literally in the name. The fact this mouse can only charge with the included 6-inch cable, combined with its mediocre-at-best battery life, is an unfortunate achilles' heel on an otherwise solid product.