Product Review

Another Language:

GreenEchoes Studio accepts requests for Product Reviews of keyboards, input devices, keycaps, switches, and related accessories for Greenkeys, our specialist keyboard media outlet.

We use each product hands-on for a set period and assess its specifications, construction, feel in use, differences from competing products, suitable uses, and points to check before purchase.

We combine articles, photos, typing-sound videos, social media posts, and other formats to help buyers in Japan understand a product and decide whether it is right for them.

GreenEchoes Studio handles contracts, quotes, and project management for reviews, while Greenkeys carries out hands-on testing, editing, writing, and publication.

About Greenkeys

Greenkeys is an independent specialist media outlet covering keyboards and input devices, with news, hands-on reviews, comparisons, interviews, and buying advice.

We create content not only to generate short-term interest in products, but also to serve people over time as they search, compare options, and research before buying.

Audience Size

• August 2026: 202,383 page views
• July 2026: 114,070 page views
• June 2026: 253,181 page views

Traffic varies depending on the time of year, search demand, and the publication schedule.

We do not guarantee views, clicks, sales, search rankings, or other results for any specific article.

What Greenkeys Reviews Include

For in-depth reviews, we typically carry out the following testing and production, depending on the product.

• Hands-on use and functional checks over a set period
• Checks of the layout, case, keycaps, switches, connectivity, software, and other aspects
• Assessment of typing feel, operation, and overall user experience
• Photography showing the product’s condition, construction, and features
• Short videos that let viewers hear the typing sound
• Comparisons with products in similar categories, price ranges, or use cases
• An outline of who the product may suit and who it may not suit
• Clear explanations of specifications, limitations, and points to check before purchase
• Information on how to buy from Japan, pricing, and sales terms
• Publication of a dedicated review on Greenkeys
• Publication announcements on social media, primarily X
• Links to product sales pages or campaign pages

Greenkeys determines the testing and article structure based on the nature of the product and the information readers need.

We confirm the specific scope of work, including photography, video production, and comparison products, when preparing a quote.

What Sets Greenkeys Reviews Apart

Greenkeys does not create photos or features solely to make a product look attractive.

We produce photos and typing-sound videos as records that help readers assess a product’s appearance, construction, finish, feel in use, typing sound, and other characteristics.

We cover not only a product’s strengths, but also issues, limitations, and points to note that we identify through actual use.

Even when there is a relationship involving product provision, production fees, or affiliate marketing, we do not guarantee a positive review or any particular conclusion.

We believe that accurate information helps align expectations with the product after purchase, building long-term trust between buyers and brands.

For Greenkeys’ editorial approach, see Content Creation and Editorial Policy.

Selected Work

GMK TriggerKey

We checked how the product felt in use when attaching and removing it, adjusting its angle, and typing normally.
We produced Japanese and English reviews explaining its unusual lever mechanism and compatibility with photos, and clearly stating the scope of our testing.

View the GMK TriggerKey case study

TacType Ceramic Keycaps

We produced Japanese and English reviews based on hands-on testing and photography before launch.
We also supported communications around the launch, from the announcement through the start of sales and the release of additional colors.

View the TacType case study

If you need an article about a product’s development background or how it works

We also produce articles that explain a product’s development background and how it works, through interviews with developers or other team members and in-person product demonstrations at trade shows.

This differs in scope from a review based on using a product over a set period, and we provide a custom estimate based on the interview and reporting requirements.

Learn more about Interview & Article Production ▷▷

Production Fees

Reviews involving detailed hands-on testing, photography, typing-sound videos, article production, and social media promotion are generally commissioned on a paid basis.

Paid Review Production

• Projects commissioned by companies in Japan: from ¥55,000 (tax included)
• Projects commissioned by overseas companies and brands: from US$350

Review production fees are based on the work required for hands-on testing, photography, reporting, writing, editing, and publication—not on the product’s retail price.

Accordingly, the same minimum-fee approach applies regardless of product category or retail price, whether the product is a keyboard, keycaps, switches, a pointing device, or an accessory.

We provide a custom estimate after reviewing the product, the testing period required, photography, article structure, publication timing, and languages.

For projects involving testing multiple products in the same series or comparing multiple sets of keycaps or switches, we make a custom proposal based on the number of products and the scope of work.

The production fee covers work such as hands-on testing, photography, reporting, writing, and editing.

It is not payment for a positive review or a conclusion favorable to sales.

For projects commissioned by overseas brands, we can also work in English and provide estimates in US dollars.

Affiliate Links and Coupons

When the sales page offers an affiliate program, trackable referral links, referral coupons, or similar options, we generally ask to use them.

Combining a fixed production fee with performance-based compensation separates the work required to produce the review from sales contributions after publication.

Whether performance-based compensation is offered, and at what rate, does not affect our assessment, comparisons, pros, cons, caveats, or conclusions.

Product Provision

We treat product provision as the provision of equipment for hands-on evaluation and ongoing testing.

Product provision alone does not guarantee a detailed review, its publication timing, article length, number of photos, social media coverage, an English version, specific article content, or a positive assessment.

When a product is provided without a production fee, we receive it as an editorial sample and may take actions such as the following.

• Mention in a news article
• Brief mention on social media
• Addition to an existing article
• Inclusion in a comparison or buying guide
• A short review or brief hands-on coverage
• Retained and tested for future articles

Greenkeys may independently produce a detailed review of a provided product when editorially warranted. However, this does not guarantee the same scope of work or publication timing as a paid review, nor does it guarantee the same treatment for other provided products.

The format, scope of testing, article structure, and publication timing are determined by Greenkeys’ editorial judgment.

If you would like the product returned, please discuss the return deadline, shipping method, and who will cover the shipping costs before it is sent.

Production Timeline

We generally allow around 3–4 weeks after the product arrives and we have confirmed the necessary information.

The following circumstances may require more time than usual:

• Products that require long-term use to evaluate
• Software or firmware that is still in development
• Differences in specifications between the prototype and mass-production version
• When additional testing of comparison products is needed
• When pre-release information or sales terms have not been finalized

If you would like the article published to coincide with a product launch, pre-order opening, crowdfunding launch, information embargo lift, or similar date, please contact us before shipping the product.

Depending on when the product arrives and when the necessary information is finalized, we may not be able to meet your requested publication date.

Pre-Publication Review

When necessary, we may share a draft article with the manufacturer, distributor, or seller before publication to verify the following facts:

• Product name, specifications, price, and release date
• Sales regions, warranty, and shipping terms
• Differences between the prototype and mass-production version
• Pre-release information and the information embargo date and time
• Technical facts that only the manufacturer can verify

Pre-publication review is intended to prevent factual errors and the publication of information that has not yet been released.

We do not accept requests to change editorial judgments, including those concerning the user experience, evaluations, comparisons, advantages, disadvantages, caveats, or conclusions.

Greenkeys retains final editorial control.

Sharing Post-Publication Results

For paid reviews, we can share post-publication results to the extent that the data is available.

Key metrics we may share include:

• Article page views
• Clicks on external links, such as links to sales pages
• Impressions on X posts
• Engagement with X posts
• Results shown in the affiliate dashboard
• Key responses from readers

The measurement period and information shared will be agreed on a case-by-case basis.

If Greenkeys cannot directly access the seller’s order data, we may not be able to determine the number of sales or the review’s contribution to revenue.

For more accurate measurement, please provide dedicated tracking links, affiliate links, coupon codes, or similar tools.

Secondary Use of Photos, Videos, and Articles

You may feature or share articles published by Greenkeys from your official brand website, sales pages, social media, and other channels.

Copyright in article text, photos, videos, and other content belongs to GreenEchoes Studio or the respective rights holders.

Please contact us in advance if you would like to reuse photos, videos, or article text for any of the following purposes:

• Featuring them on e-commerce sites or crowdfunding pages
• Reposting image or video files on official brand social media accounts
• Use in web ads, social media ads, and banners
• Use in press releases and promotional materials
• Providing assets to third-party media outlets or retailers

We will confirm the intended use, media, publication period, and whether any modifications are needed, and provide a separate estimate if necessary.

Information to Include in Your Inquiry

If you are interested in a review or media coverage, please provide the following information where possible.

• Company or brand name
• Contact name
• Product name
• Official website or product page
• Product overview and key features
• Release date or campaign period
• Preferred publication timing
• Whether the product to be provided is a mass-production model or a prototype, and how its specifications differ from the product planned for sale
• Whether the product will be provided or loaned
• Whether you would like the product returned
• Price and sales method in Japan
• Whether affiliate links, trackable links, or coupons are available
• Embargo date and time
• Whether pre-publication review is required
• Requested content
• Estimated budget

You are welcome to get in touch even if the details of your request are not yet finalized.

After reviewing your inquiry, we typically reply within 5 business days.

Product Review Inquiries

For inquiries about Product Reviews, please use the dedicated form below.

Product Design and Japan Market Support

We offer the following as corporate support services, separate from reviews and media coverage.

• Brainstorming on product design
• Review of Japanese keyboard layouts and keycap legends
• Keyboard layout advisory
• Localization for the Japanese market
• Analysis of competing products and price segments
• Positioning and messaging for the Japanese market
• Ongoing support before and after crowdfunding campaigns
• Building connections with domestic retailers
• Market Survey of Greenkeys readers and article visitors

Product Advisory & Supervision ▷▷

Other Services for Businesses

GreenEchoes Studio offers several support services depending on a product’s development stage and its status in the Japanese market.

• Product Review
• Market Survey
• Launch Support
• Product Advisory & Supervision
• Interview & Article Production

Even when combining multiple services, we clearly separate the objectives, scope, and fees in our proposal.

View all services for businesses ▷▷