BuyDig offers the Audio-Technica QuietPoint Active Noise-Canceling In-Ear Headphones, model no. ATH-ANC23, for $49.99 with free shipping. That’s the lowest total price we could find by $20. These in-ear headphones purport to reduce environmental noise by up to 85%, and feature a monitor switch (which deactivates noise cancellation), 12.5mm drivers, frequency response of 20Hz to 20KHz, and more. One AAA battery is included.

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