Why did we create Listnr?
All living things recognize their environment by sound, and communicate with it.
We wanted to build something using sound to enrich and delight our lives.
Listnr is a completely new type of communication device allowing you to interact with your environment by sound.
- You can get a notification when Listnr hears specific sounds.
- Using the API, you can control and update internet-enabled devices by setting sounds as triggers.
What is it for?
Listnr lets you connect a smart light-bulb (Philips HUE) and turn the light on/off by snapping your fingers.
Listnr has an advanced audio processor, and it understands emotions from sounds. For example, Listnr can identify the different sounds coming from a baby - when the baby cries, laughs, screams, or burbles.
With additional development, Listnr will be able to understand peoples' feelings by hearing their voices, and will signal what it hears from its color - allowing a visual indicator of the emotional tenor of the voices in the room.
Listnr can be lit up brightly with few colors.
With the baby app, you can get notifications directly to your smartphone.
How To Use
Listnr is easy to set up and ready to use.
1. Install the Listnr App to your smartphone
2. Plug in
3. Set up Wi-Fi
Listnr is a hackable (API ready) project,
There are 2 types of development methods:
Listnr can send recorded sounds, in realtime, to your own web service for processing, analysis, or using as triggers for other events.
Use Listnr's native cloud software for voice/sound recognition to trigger other external events.
Listnr Package Contains:
- Listnr main unit
- Listnr Official App
- AC adapter [USA/JP and EU (Type-C)]*
- Setup manual & warranty document
- Setup cable
*Guaranteed for use in USA, EU, and Japan
iOS 8 or later
If the funding goal exceeds $75K USD, we will commit to release the app for Android (4.4 or later)
We wanted Listnr to be used everyday as a new method of communication. That's why Listnr has a soft and comfortable design even though it is the cutting edge technology.
Listnr's main unit comes in 2 colors (white, cyan with red cable) and 1 special design (light gray with yellow cable).
Kickstarter limited design
Size (±2mm )
Power source 100-240v, 5v 1.2A AC adapter (USA,Japan and EU (Type-C) plug, supported UL/PSE/CE)
Power consumption TBD (approx between 1.5 to 2w)
Connects AC adaptor and USB
Fix rate will be charged for shipping:
Who are we?
The Listnr Project started in 2014 with 2 hardware technology companies. Our team has worked in various industries to make Listnr develop one of the revolutionary listening project.
Koichi Nakayama, CEO, has worked at Cerevo in product development.
Satoshi Yanagisawa, product designer, has spent his design career focused on design activities, always with a vision of improving sustainability.
Hikaru Kinouchi, director of international community, has worked in Boston as a science researcher at Harvard Medical School and Tufts School of Medicine for audio and visual neural regeneration research.
Rie Ehara(@rie_re) - Co-Founder, communication designer
I live in Tokyo and have traveled internationally to build products focused on aesthetics and communication.
My passion is connecting people with common interests, working on the frontier of technology. I'm looking forward to seeing what the world can do with Listnr.
Listnr is developed in collaboration with the following 2 companies in Japan.
Cerevo is a hardware startup company founded by Takuma and based in Tokyo since 2007. We are collaborating with Cerevo for making the Listnr hardware.
Panasonic helped us develop the sound recognition engine, including technology to distinguish sounds like babies' emotions.
As Featured at
2015 International CES (Las Vegas, Jan 6-9, 2015)
- Please visit our booth and see & touch Listnr!
Sands - #74761
Tech West, Sands Expo, Level 2, Halls A-C and Venetian, Level 2, Meeting Rooms (map)
Many thanks for everyone met in CES!!
We have been selected as the first hardware startup by ABBALab, a hardware incubator, and supported by DMM.make AKIBA, the biggest hardware studio in Asia. They helped us develop Listnr this far!
Finger snap demo
Baby nortification demo
（notification says cry on phone）
Please help us develop this project!
Kanae Noguchi, Shota Inoue, Yasutake Takaya, mishmash*, Shigehiro Iida, Jiro Matsui, Yasuhiro Yuki, Ryota Fujimura, Masako Ikeda, Rinako Kamei, Osamu Ogasahara, Kazuhito Mine, Masaki Ishitani, Masao, Ito, Hiroshi Masuyama, Ikue Fukushi, Yuki Kai, Makoto Kitamura, Alejandro Perez, Lev Raslin, Ken Nesmith, Daniel De Rienzo
Thank you for taking time to look our project!
Risks and challenges
There is a possibility of delay, but we will keep in touch monthly and reply to your comments as frequently as possible.
We cannot guarantee the precision of our native sound recognition software, but we will do our best to make Listnr useful for your everyday usage.
With our beta version internally, our data suggests over 75% of a baby's sounds are recognized and categorized correctly. We expect this to be above 90% before shipping.
Other sounds, like finger snapping, or stepping, and clapping sound will be recognized by the time of release.Learn about accountability on Kickstarter
- (60 days)