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    Puro Sound Labs PuroQuiet review: These headphones are designed to protect children’s hearing

    I’m a stong advocate for safeguarding your listening to from noise-induced listening to loss (NIHL). This is an even bigger downside as we speak than ever earlier than, particularly since so many individuals hearken to music from their transportable units on headphones, typically cranking the quantity to unsafe ranges.

    Electronics specialist Dave Russell turned involved when his younger daughter began affected by NIHL as a result of she was listening to music on headphones at excessive ranges for lengthy durations of time. He based Puro Sound Labs to develop high-quality headphones for teenagers that assist defend their listening to.

    Two years in the past, TechHive reviewed Puro Sound’s previous models, the BT2200 for teenagers and BT5200 for adults. Now, Puro Sound has launched a brand new mannequin, the PuroQuiet, which provides energetic noise cancellation (ANC). Can it assist stem the tide of NIHL in children? I used to be keen to search out out.

    PuroQuiet function set

    The PuroQuiet is an on-ear headphone—that’s, the earcups sit on the ears slightly than round them, although I suppose they could match round a small youngster’s ears. The earpads and headband are wrapped in what the Puro Sound web site calls “protein leather,” and so they weigh slightly below six ounces, which could be very light-weight.

    Puro Sound Labs

    The PuroQuiet has a fancy construction, as seen on this exploded view.

    Sound is reproduced by 40mm dynamic drivers with neodymium magnets aided by a Qualcomm CSR 8635 DSP (digital sign processing) chipset. Frequency response is specified from 20Hz to 20kHz (no tolerance given).

    The main audio enter is Bluetooth 4.0 from any appropriate supply machine. Supported profiles embrace A2DP, AVRCP, HFP, and HSP (aptX will not be supported, regardless of the Qualcomm chip). A 3.5mm two-channel analog-audio jack can be obtainable on the underside of the fitting earcup. If the battery dies, you possibly can join a supply machine to the headphone with the included cable (or any 3.5mm audio cable) and proceed having fun with your tunes.

    The PuroQuiet approaches listening to safety in 3 ways. First, the corporate claims 82 % passive noise isolation at 1kHz just by carrying the headphone. This appears fairly excessive to me, particularly for on-ear headphones. Most of the corporate’s supplies point out 82 % noise isolation with out specifying the frequency, which appears a bit deceptive.

    In response to my queries about this, the corporate knowledgeable me that the isolation issue will increase with frequency. It’s comparatively flat from about 300Hz to roughly 2kHz, and it will increase dramatically above that. There will not be a lot isolation beneath 300Hz, as seen within the graph beneath.

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