Here Active Listening Earbuds
A pair of Bluetooth earbuds and a mobile app that let you modify the sound from your surroundings. It can lower the overall volume or just certain frequencies, as well as equalize or even add effects like echo, all in real time.
Crowdfunded projects pose a degree of risk for buyers, so be sure to do your research and fully read the seller's detailed description and production plans before plunking down your hard-earned money.
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