Published on July 3, 2017 by University of Washington Computer Science & Engineering

University of Washington engineers present the first battery-free cellphone design that consumes only a few micro-watts of power. The new design can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time. The system developed by researchers from the Allen School of Computer Science & Engineering and the UW Department of Electrical Engineering optimizes transmission and reception of speech while simultaneously harvesting power which enables the battery-free cellphone to operate continuously.

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164 Comments on "Battery-free Cellphone"

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fernando p
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fernando p
4 months 1 day ago

wow, this is amazing, this could lead to a new technology, brilliant

abraham Logos
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abraham Logos
4 months 29 days ago

and where do we buy them?

Christel Stanley
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Christel Stanley
6 months 8 days ago

7

Christel Stanley
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Christel Stanley
6 months 8 days ago

Can someone fix it???

Christel Stanley
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Christel Stanley
6 months 8 days ago

This guy is breaking my heart cuz he is a 2 timer

toniodotcom
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toniodotcom
6 months 11 days ago

LOLLL as soon as you remove the touchscreen which is the #1 power hungry component…

mohamed.nezami@gmail.com
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mohamed.nezami@gmail.com
6 months 16 days ago

Its basically a voice transmitter that operates like RFID. So its not really a cell phone. Its more like an alternative to Bluetooth maybe ?. Because you still have to have a base that dials up the LTE network.

Troy Colon
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Troy Colon
7 months 25 days ago

This easy method works for nearly all kinds of old/dead batteries too. You can bring car, phone, laptop, AA, AAA, alkaline, and cordless power tool batteries back to life [Check Details Here==>paper.dropbox.com/doc/Reconditioning-Any-Type-of-Dead-Battery-znFRbqzq5jpI3ZJjZKXX1 ].

Troy Colon
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Troy Colon
7 months 26 days ago

This easy method works for nearly all kinds of old/dead batteries too. You can bring car, phone, laptop, AA, AAA, alkaline, and cordless power tool batteries back to life [Check Details Here==>paper.dropbox.com/doc/Reconditioning-Any-Type-of-Dead-Battery-znFRbqzq5jpI3ZJjZKXX1 ].

Ahmed Raza
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Ahmed Raza
8 months 25 days ago

Please guide me how can i buy this sell phone or from where i buy this phone reply me hurry if someone knows about the phone📱

Ahmed Raza
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Ahmed Raza
8 months 25 days ago

Please guide me how can i buy this sell phone or from where i buy this phone reply me hurry if someone knows about the phone📱

PROJECT ZOOGUNNER
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PROJECT ZOOGUNNER
9 months 11 days ago

What's next? A Machine that Prints letters on paper when you type them?This Technology will Doom us all!

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