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Sennheiser HD1 In-Ear Wireless Headphones, Bluetooth 4.1 with Qualcomm Apt-X and AAC, NFC one touch pairing, 10 hour battery life, 1.5 hour fast USB charging, multi-connection to 2 devices : Electronics - Amazon.com
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Amazon.com: Sennheiser HD 250BT Bluetooth 5.0 Wireless Headphone with AAC, aptX™, aptX™ Low Latency, transducer technology and build-in microphone- 25 hour battery life, USB-C fast charging – Black : Electronics
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