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Apple, Koss settle wireless-headphone patent fight before trial | Reuters
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Amazon.com: Koss True Wireless Earbuds, TWS250i, Bluetooth 5.0, On-Board Touch Controls with Microphones, 11+ Hour Battery Life with USB-C Charging Case, Black : Electronics
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Koss TWS250i Review | headphonecheck.com
TWS250i True Wireless Bluetooth® Ear Buds - Koss Stereophones
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