This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "using commercial vibrators and wireless remotes" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.
Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.
In short
Commercial vibrators appeared in several designs, but the diary records problems with fit, vibration strength, and compatibility.
Mr. Okada adapted existing controllers and assessed proposed connections individually.
The current list includes a programmable-controller upgrade; it does not confirm every historical custom setup.
If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away.
If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.
About this product
The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY).
The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below).
Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.
Before you read: key terms
| Term | Plain-English meaning |
|---|---|
| Urethra | The urine passage; the base chip occupies this passage to act on the prostate. |
| Commercial vibrator | A ready-made vibrating device; the diary uses some complete devices and some of their components. |
| Controller | The part that controls vibration; some models provide changing patterns instead of only on/off operation. |
| Receiver | The part that accepts wireless commands; it works with a power supply connected to the chip. |
| IC controller | An electronic controller providing programmed vibration patterns; the diary used controllers from commercial vibrators. |
| Ring vibrator | A vibrating ring intended for the penis base; one prototype used it as an external vibration source. |
| Bluetooth | A wireless connection used for smartphone control; the diary describes app-controlled vibration features. |
| USB | A connector used in these designs to supply power and link motors with controllers. |
What happens: vibrator compatibility and wireless control
The OK Prostate Chip is a device placed in the urethra to act on the prostate. The diary explores commercial vibrators (ready-made vibrating devices) as vibration sources and controllers (parts that control vibration) for different designs. Some attachments belonged to anal chips, while later designs sent vibration from an external device to a urethral component. Wireless proposals and later smartphone control concerned how vibration was controlled, with separate questions about the physical connection and power supply.
A commercial vibrator costing about ¥600 (about $4 at ¥156 = $1, rate as of 2026-09-04) informed the first spiral attachment

In an entry published in December 2018, Mr. Okada described a spiral anal chip sized around a commercial vibrator. His test purchase was a pink vibrator made by Toys Heart, costing about ¥600 (about $4 at ¥156 = $1, rate as of 2026-09-04). The spiral held the vibrator with a slightly firm grip rather than a permanent connection. Mr. Okada advised requesting a spiral matched to the intended vibrator when ordering.
(Source: ok-lab's diary, published December 2018)
https://ok-lab.hatenablog.com/entry/20181215/1544857573
The dual vibrator attachment required a larger looped anal chip
A separate design in the entry published in December 2018 used a commercial vibrator with two vibrating units on a looped anal chip. One unit was at the loop and the other at the chip's end; a small gap accommodated wiring. The historical fitting charge was ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04) excluding tax, plus the vibrator's actual cost. Mr. Okada restricted this custom offer to chips measuring 4cm or more; the 3cm version could not accommodate it.
(Source: ok-lab's diary, published December 2018)
https://ok-lab.hatenablog.com/entry/20181215/1544857573
A single vibrator attachment cost less and fitted more anal-chip shapes
Another configuration in the entry published in December 2018 used only one vibrating unit at an anal chip's end. Mr. Okada reported that it also made the whole chip vibrate gently, and said this arrangement could fit every anal-chip type. The fitting charge was ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) excluding tax, plus the vibrator's actual cost; his cheapest test purchase cost about ¥1,300 (about $8 at ¥156 = $1, rate as of 2026-09-04). Mr. Okada considered this gentler arrangement suitable for beginners.
(Source: ok-lab's diary, published December 2018)
https://ok-lab.hatenablog.com/entry/20181215/1544857573
A programmable controller cost extra because its supply was uncertain
In an entry published in February 2019, the standard vibrating chip came with a battery box offering only on/off control. An IC controller (an electronic controller providing programmed vibration patterns) was an option costing an additional ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) excluding tax. Mr. Okada bought complete commercial vibrators because he did not know how to obtain these controllers separately.
He warned that discontinuation of the source product could also end his controller supply. He expected ordinary battery boxes to remain available separately, even if the original pink vibrator disappeared. Mr. Okada therefore kept the basic battery box as the standard offering.
(Source: ok-lab's diary, published February 2019)
https://ok-lab.hatenablog.com/entry/2019/02/16/171153
A German ring vibrator became too tight in Mr. Okada's test
In an entry published in October 2021, Mr. Okada described problems with a German ring vibrator (a vibrating ring intended for the penis base). He wrote that its intended fit did not extend behind the testicles. In his experiment, stretching it beyond that intended fit made it too tight, and his penis turned purple. Mr. Okada rejected that fit while pursuing his own design.
(Source: ok-lab's diary, published October 2021)
https://ok-lab.hatenablog.com/entry/2021/10/23/125707
Mr. Okada rejected a 42mm ring vibrator over removal concerns
A different test in the entry published in October 2021 concerned a Chinese ring with two motors (components that produce vibration). Its inner diameter was 42mm, and its construction allowed very little stretching. Mr. Okada wrote that it could not be removed during an erection and found its vibration excessively strong and coarse. He explicitly advised against this ring because he considered it dangerous.
(Source: ok-lab's diary, published October 2021)
https://ok-lab.hatenablog.com/entry/2021/10/23/125707
A Bluetooth controller brought app features to the vibrating chip
In an entry published in December 2021, Mr. Okada introduced Bluetooth control (wireless smartphone control) based on a German waterproof rechargeable vibrator. Its original vibrating section was absent, leaving its controller to operate an OK Lab vibrating chip. The plain vibrating chip bundle cost ¥15,000 (about $96 at ¥156 = $1, rate as of 2026-09-04) excluding tax, while the controller alone cost ¥12,000 (about $77 at ¥156 = $1, rate as of 2026-09-04) excluding tax.
A ceramic vibrating chip added ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) to that historical price. Mr. Okada reported waterproof performance during a 24-hour continuous underwater test. He recommended the free Satisfyer smartphone app for stored patterns, music, surrounding sound, timer functions, and remote operation.
(Source: ok-lab's diary, published December 2021)
https://ok-lab.hatenablog.com/entry/2021/12/18/123756
A commercial vibrator still felt too strong in March 2023
In an entry published in March 2023, Mr. Okada discussed a planned support device with selectable parts and an external vibrator. He said an ordinary commercial vibrator could work unchanged, but its vibration felt too strong for him to use beyond short periods. He hoped to offer a vibrator with very gentle output. Mr. Okada cautioned that the planned support would require individual adjustment and could not be sold as something immediately ready for everyone.
(Source: ok-lab's diary, published March 2023)
https://ok-lab.hatenablog.com/entry/2023/03/11/122451
The maker's answer to vibrator compatibility and wireless control
Mr. Okada chose components around each design's power, vibration, and connection needs.
Poor vibration transfer led Mr. Okada toward an external ring vibrator

In an entry published in October 2021, Mr. Okada reported that holding a vibrator's vibrating part absorbed vibration into the body. He thought this reduced transmission along the wire to the urethral component. His motorless blue-chip assembly instead paired that component with an external German ring vibrator.
He described that ring as cordless, fully waterproof, and covered by a 10-year guarantee. OK Lab had no plans to sell the companion commercial vibrators at that time. Mr. Okada favored an external vibration source over developing the small internal motor he considered too fragile.
(Source: ok-lab's diary, published October 2021)
https://ok-lab.hatenablog.com/entry/2021/10/16/125843
Commercial vibrator motors were suggested for skin-mounted equipment instead
In an entry published in December 2021, Mr. Okada discussed a collaborator's proposed device for controlling motors through 8 separate channels. Once he understood that the motors would be attached to skin, he questioned the need for his more expensive vibrating-chip components. He considered their prolonged waterproofing and resistance to boiling unnecessary for that particular application. For this skin-mounted project, Mr. Okada suggested cheaper motors from commercial adult products.
(Source: ok-lab's diary, published December 2021)
https://ok-lab.hatenablog.com/entry/2021/12/11/124426
A dedicated vibrator system addressed power limits and motor choice
In an entry published in April 2023, Mr. Okada described a dedicated system for his external support device. He reported rapid battery depletion with stronger motors and insufficient power from the generally 3V battery-powered controllers. The basic set combined a three-battery box, controller, and cylindrical motor, with USB connections (connections for power and motors).
Published prices excluding tax were ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) for the basic set and ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04) for the 2m extension cable. The USB branching cable cost ¥1,500 (about $10 at ¥156 = $1, rate as of 2026-09-04), and an egg-shaped motor with a USB connector cost ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04), also excluding tax. Mr. Okada favored a cylindrical motor for the support because he found egg-shaped ones slipped out of its holder.
(Source: ok-lab's diary, published April 2023)
https://ok-lab.hatenablog.com/entry/2023/04/29/123107
If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away.
If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.
How vibrator compatibility and wireless control changed over time
| Published | What the diary said then |
|---|---|
| Dec 2018 | Spiral dimensions varied by several millimetres; vibrator-specific size matching was offered. |
| Jan 2019 | Wireless conversion appeared technically possible but remained untested. |
| Feb 2019 | Mr. Okada preferred glass over resin for conveying subtle programmed vibration changes. |
| Dec 2019 | Four controller options were offered; Mr. Okada named no recommended third-party model. |
| Oct 2021 | The twisted wire-and-nylon prototype had not yet undergone strength testing. |
| Oct 2021 | An open Chinese ring broke at a stretching section during Mr. Okada's tests. |
| Dec 2021 | All controller families relied on other companies' products, sometimes altered. |
| Apr 2023 | A dedicated system offered 120 vibration modes, replaceable motors, and USB branching. |
OK Prostate Chip products related to vibrator compatibility and wireless control
The current list confirms the programmable-controller upgrade, priced separately from the historical custom designs.
Products that appear in these entries

| Product (official name) | Price incl. tax | Relation to this topic |
|---|---|---|
| Programmable-controller upgrade (ICコントローラに変更(核振チップオプション)) | ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04) | In February 2019, this controller option provided programmed vibration instead of the standard battery box's on/off control. |
The programmable-controller upgrade is sold through OK Lab's own online store.
(Source: ok-lab's diary, published February 2019)
https://ok-lab.hatenablog.com/entry/2019/02/16/171153
Products the diary mentioned as alternatives
The diary names no alternative.
Historical custom items include the anal-chip vibrator attachments, motorless blue-chip assembly, Bluetooth controller bundle, and dedicated external vibrator system. No matching product can be confirmed on the current list.
Common worries about vibrator compatibility and wireless control
The recorded reader exchanges concern wireless control and adapting an existing programmable vibrator.
"Could a wireless remote make the chip completely cordless?"

In an entry published in January 2019, a reader suggested a wireless vibrator controller for the vibrating chip. Mr. Okada thought adapting a commercial system was technically possible, although he had not tested it. The receiver (the part accepting wireless commands) and its power supply would still need a connection to the chip.
He expected handling to remain much like the existing controller, despite the convenience of a separate wireless remote. Mr. Okada said he would consider the proposal, while noting that it would cost more than an ordinary vibrator arrangement.
(Source: ok-lab's diary, published January 2019)
https://ok-lab.hatenablog.com/entry/2019/01/26/152042
"Could OK Lab adapt a customer's programmable vibrator controller?"
In an entry published in December 2019, a customer wanted an existing programmable vibrator controller connected to an OK Lab vibrating chip. The customer's Time Rotor had ON, OFF, and PGM switches; PGM ran patterns written on a computer. Mr. Okada said he needed to inspect the actual device before deciding whether conversion was possible.
If feasible, the USB conversion would cost ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04); if unsuccessful, he intended to restore the original connection and return it. The supplied diary material does not record whether the conversion succeeded; the parcel had not arrived when the entry was published. Mr. Okada asked for information about its operation so he could assess and test the unfamiliar controller.
(Source: ok-lab's diary, published December 2019)
https://ok-lab.hatenablog.com/entry/2019/12/14/151232
Buying from outside Japan
OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.
Summary of this article
| What you wanted to know | The answer |
|---|---|
| Can ordinary vibrators work with these designs? | Some historical combinations worked; fit, vibration strength, and compatibility varied. |
| What is the base product? | A urethral device made and sold by OK Lab in Japan. |
| What does wireless control mean here? | Remote operation; the early proposal still required a receiver and power connection. |
| What problems appeared in testing? | Excessive vibration, poor fit, and rings Mr. Okada described as dangerously restrictive. |
| How did the maker respond? | He selected external motors, adapted controllers, and developed a dedicated power system. |
| How did the designs develop? | The diary moved from vibrator attachments to programmed control, smartphone features, and multiple-motor connections. |
| What current price is confirmed? | The programmable-controller upgrade is ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04) including tax on the supplied current list. |
| What remains unknown from the customer requests? | Whether the customer's programmable-controller conversion succeeded. |
| How do overseas orders work? | Advance PayPal payment, a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and additional Japan Post EMS shipping. |
Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.
This article is a summary of the maker's development diary. The product is not a medical device and no result is guaranteed. If anything feels wrong or worries you, see a doctor. Prices, specifications and cautions change, so confirm the latest information on the official blog and the official site. Questions about ordering and shipping go to the seller.