
And you’ll need to find them all for 100-percent completion of Japan.
With the near total dominance of smartphones in Japan, like in many societies, the noble pay phone has become a dying breed. Although still used by ghosts and obsessive retirees, their numbers have been rapidly dwindling, making them rarer and rarer.
And among these increasingly scarce beasts are the legendary double pay phones or “Duet Phones” as they’re called. These phones are so rare that most Japanese people aren’t aware of their existence and usually take to social media after stumbling upon one.
▼ “In front of the Nakahara Ward Office in Kawasaki there is a Duet Phone public phone that lets three people talk at the same time. The idea of three people communicating is interesting!!”
川崎市の中原区役所の前に三人で同時に通話が出来る公衆電話「デュエットフォン」あります。
— 川崎シビックパワーバトル (@Kawasaki_CPB) July 9, 2018
3人で通話という発想が面白い!!#川崎市 #中原区 #トマソン pic.twitter.com/GqWu0i9R9Y
The reaction of other Twitter users shows just how unfamiliar these mutant devices are in the Japanese landscape.
“There are two handsets!!”
“I have never seen a phone like that.”
“Oh, that looks really useful.”
“I wonder if it’s meant for a mother and child to talk with the father who’s working out of town…”
“Even if I had my smartphone, I would want to try that.”
“Which handset are you supposed to use?”
“I live in the same city and had no idea that phone existed.”
It’s easy to dismiss these sightings as some sort of hoax or art installation, rather than an official public phone installed by NTT, Japan’s privatized telecom company that oversees most pay phones in the country.
To find out, J-Town Net asked NTT about the existence and use of Duet Phones. A rep for the company said that an undisclosed number of these phones had been set up to celebrate the 100th anniversary of their use in Japan. Since they are managed regionally, the rep could only vouch for the existence of one at the Nakahara Ward Office in Kawasaki City shown in the tweet above.
▼ Googling “Duet Phone” in Japanese (デュエットホン) will also pinpoint this particular unit. It’s hard to see but it’s inside the fake tree.
However, it is certainly not the only Duet Phone in Japan. The NTT rep couldn’t confirm how many of these phones were originally installed or still in use around the country, but a blogger named Mikkii found two others from various other tweets.
One is in a booth at The Historical Site of The Martrydom of Hidden Christians located deep in the mountainous Otome Pass in Tsuwano Town, Shimane Prefecture.
Another is inside a small log shed outside a government office in Kanonji City, Kagawa Prefecture.
For years, it has been written that these are the only three Duet Phones in Japan. However, recently another one in Mustu City, Aomori Prefecture, just outside a Maeda shopping center, has been shown to exist.
Another one was reported in Yamaguchi Prefecture hiding right behind an ordinary pay phone outside the Shunan City Museum of Art & History.
https://www.youtube.com/watch?v=zlCJsvMw8jk
This brings us to at least five confirmed existing Duet Phones with a high potential for more. In the past, TV shows have done segments on these machines and estimates have ranged from seven to 20 across the country, but the true number is still unclear. Also, with the overall disappearance of pay phones their population may continue to shrink.
▼ “I went to check the safety of the Duet Phone in the Aeon Tsuchizakiminato Store [Akita Prefecture] but couldn’t find it. I asked the clerk and they said it was removed years ago. Only traces of its old sign remain.”
イオン土崎港店でデュエットホンの安否を確認しましたが、見当たらなかったので店員さんに確認したところ、数年前に撤去されたとのこと。撤去された看板跡だけ残っていました。#デュエットホン pic.twitter.com/31TBFzC84I
— ニャンパパ (@h4rwHG5osWTUWrJ) January 9, 2020
So if you happen to know of any Duet Phones wherever you are in Japan, let us know by sending an email from it. Then we can add it to this walkthrough and help everyone unlock that Platinum Trophy in the game of Japan.
Source: J-Town Net, Hot Hitoiki Recipe
Top image: YouTube/Tabi Suru Hikikomori Channel
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!

Navigate your way through Japan’s busiest train stations with Google Street View
10 best rest stops in Japan ranked by customer satisfaction for 2018
Character created by Hayao Miyazaki pops up on manhole covers in Ghibli Museum neighbourhood
Tour Akita Prefecture from the back of an Akita Inu Dog with Google’s adorable doggie Street View
1:1-scale Ultraman artwork appears on headquarters of Japan’s biggest toymaker【Photos】
Downloads of 39-year-old Guns N’ Roses song increase 12,166 percent thanks to Gundam
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
7-Eleven Japan sells freshly baked pizzas…but are they any good?
There’s a samurai-era village for you to walk through at this awesome overlooked museum in Japan
A spotlight on Japanese singles figure skating: Jumping into the 2026 Olympics【Pt. II】
Star Wars stormtroopers don Gundam armor in fan’s awesome crossover models 【Videos/Photos】
Octopus tentacle ear plugs coming to Japanese capsule toy machines
7-Eleven opens “next generation” SIP convenience store in Japan
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Cats and dogs apologising at Japanese press conference is our newest gacha capsule toy obsession
Yokai are descending upon Tokyo this spring in the latest immersive art experience
Three beautiful places to see Japan’s plum blossoms after starting your day in downtown Tokyo
Cherry blossom forecasts map shows Japan’s OTHER sakura season is starting right now
New Studio Ghibli stamps leave an impression on your stationery…and your heart
Japanese women sound off on their minimum height requirements for a husband【Survey】
Huge Evangelion Unit-01 head appearing in lights in Japan to celebrate anime’s 30th anniversary
Kyoto planning surprise late-night inspections of Airbnb-style rentals to fight overtourism
Japanese movie theater chain’s popcorn earns highest Grand Prix quality certification
Japan’s most famous Mt. Fuji view park cancels cherry blossom festival because of overtourism
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Japan releases first official sakura cherry blossom forecast for 2026
10 times to avoid traveling in Japan in 2026
Archfiend Hello Kitty appears as Sanrio launches new team-up with Yu-Gi-Oh【Pics】
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
China’s don’t-go-to-Japan warning looks to be affecting tourist crowds on Miyajima
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Studio Ghibli releases new “komorebi” plush toys from Princess Mononoke and Spirited Away
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Five years on, Google Maps updates images of areas affected by 2011 earthquake and tsunami
Bad tourist manners at Mt Fuji Lawson photo spot prompts Japanese town to block view with screens
Veterinarian’s office in suburban Japan has custom sign drawn by manga star Rumiko Takahashi
Toilet rubber theft baffles, grosses out Japan
Scope out which love hotel to take your next date to right now in Google Street View
Japan’s “Underground Temple” now up for virtual touring in Google Street View
Japan is building a Pokémon Slowpoke Park to delight fans of all ages
Pink-shirted multiplying man found in Akihabara on Google Street View
The most unusual ATM in Japan? Banking with yokai spirits who want to know your PIN
Make sure to visit this historical onsen once before you die, or just do it right now with Google
Where will you go this summer? Here are the top 10 Japanese swimming spots with the nicest water
The new world’s smallest park is in Japan, and it’s so tiny you might not even notice it【Video】
Beautifully off the beaten path in Nara with the Shimo no Negimichi shrine trail【Photos】
Old teahouse home in the heart of Tokyo goes to auction
”We came home.” Sega makes arcade comeback with new game center in Tokyo’s Ikebukuro district
Tourists warned about fake volunteer guide near Kinkakuji in Kyoto
Leave a Reply