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Amazon.com: Koss BT221i Wireless Bluetooth Ear Clips, In-Line Microphone, Volume Control and Touch Remote, Sweat Resistant, Black : Electronics
Double the Sound, No Strings Attached. The Koss Wireless Bundle is Back. Get both the BT740i QZ Wireless Noise Cancelling Headphones and… | Instagram
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Amazon.com: Koss KPH7 Wireless Bluetooth On-Ear Headphones, On-Board Controls with Microphone, Lightweight Portable Fold Flat Design for Compact Storage, Black : Electronics
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