This article covers エレコム マウス ワイヤレス (レシーバー付属) Mサイズ 3ボタン 約2.5年電池交換不要 省電力 ブラック M-FIR08DRBK (× 4).
Overview
The ELECOM M-FIR08DRBK is a wireless mouse that uses an infrared LED (IR LED) to achieve remarkably low power consumption. Its standout feature is a battery life of approximately 2.5 years from a single AA alkaline battery — a figure that puts most wireless mice to shame. By choosing IR over blue LED or laser, ELECOM has prioritized efficiency over raw tracking performance. This mouse adopts a symmetrical, ambidextrous design that works equally well for left- and right-handed users. The optical resolution is 1200 CPI, which is perfectly adequate for everyday office tasks and web browsing. Wireless connectivity uses the 2.4GHz band, offering a range of up to 10 meters on non-magnetic surfaces and about 3 meters on steel desks.
Connectivity & Compatibility
The M-FIR08DRBK connects via a tiny USB Type-A receiver — plug it in and it works immediately with no pairing or driver installation required. It is compatible with Windows, macOS, and Chrome OS, making it a universal solution for almost any desktop or laptop with a USB-A port. One limitation: the receiver uses USB-A only. If your laptop has only USB-C ports (common on recent ultrabooks), you will need a separate USB-C to USB-A adapter. There is no Bluetooth variant, so this mouse cannot connect to tablets or phones without a USB host.
Product Info
Released around 2024, the M-FIR08DRBK is part of ELECOM's long-running FIR series. The street price is approximately ¥1,500, placing it firmly in the entry-level wireless mouse segment. The warranty is the standard 6 months from the manufacturer. The package includes the mouse, the USB receiver, one test AA battery, and a quick-start guide. This is a no-frills, budget-oriented product. It is not designed for gaming or precision work, but it excels at the basics: reliable wireless connectivity, long battery life, and ease of use at a very low price.
Best Use Cases
Office workers and remote employees: If you spend 8+ hours a day at a computer, not having to change batteries for over two years is a genuine quality-of-life improvement. The cable-free desk is a bonus. However, if you frequently travel with your mouse, the risk of losing the tiny receiver is real — a Bluetooth mouse might be a safer choice for mobile users. Seniors and PC beginners: Setup is as simple as inserting the receiver. The ambidextrous shape means anyone in the household can use it comfortably. But if you need precise cursor control for photo editing or gaming, the fixed 1200 CPI resolution will feel limiting. * Eco-conscious users: Lower power consumption means fewer disposable batteries end up in landfills. If you prefer rechargeable built-in batteries, however, the AA battery design may feel outdated.
Things to Consider
The IR LED tracking can struggle on glossy or reflective surfaces like glass tables — a mouse pad is strongly recommended. The lack of Bluetooth means one USB-A port is permanently occupied. For gaming or high-DPI workflows, look elsewhere; this mouse has no adjustable CPI, no extra buttons, and a standard polling rate. It is a straightforward, reliable, and extremely long-lasting wireless mouse for everyday computing — nothing more, nothing less.
Product Disclosure (Amazon)
- Manufacturer: エレコム(ELECOM)
- Seller: Amazon.co.jp
- Fulfilled by: Amazon.co.jp
- ASIN: B0H8F25Q7X
- Note: This article covers a manufacturer-made product based on Amazon listing details.
