Volume-Limiting Headphones
Sounds louder than 85 decibels can cause hearing loss, but most digital music players can exceed that threshold. Headphones and ear buds from iHearSafe of Milford, NH, have a volume-limiting circuit hardwired into the cord. Unlike the software that some concerned parents have used to cap the volume of their kids’ music players, the hardwired circuit can’t be digitally circumvented.
Product: iHearSafe ear buds,headphones, and ear clips
Cost: $19.99 for ear buds and $24.99 for headphones or ear clips
Source: www.ihearsafe.com
Companies: iHearSafe
Keep Reading
Most Popular
Forget dating apps: Here’s how the net’s newest matchmakers help you find love
Fed up with apps, people looking for romance are finding inspiration on Twitter, TikTok—and even email newsletters.
How AI is reinventing what computers are
Three key ways artificial intelligence is changing what it means to compute.
These weird virtual creatures evolve their bodies to solve problems
They show how intelligence and body plans are closely linked—and could unlock AI for robots.
We reviewed three at-home covid tests. The results were mixed.
Over-the-counter coronavirus tests are finally available in the US. Some are more accurate and easier to use than others.
Stay connected
Illustration by Rose WongGet the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.