Amazon.com: 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
User manual Sennheiser Momentum Free (English - 34 pages)
Pairing the earphones with a Bluetooth device
Sennheiser MOMENTUM In-Ear Wireless - Earphones In Ear Headphones with integrated mic - easy call control function
Amazon.com: 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
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Sennheiser MOMENTUM Wireless Review
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