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
Ergonomic around-the-neck design features soft stitched sheepskin nappa leather neckband offering all-day listening comfort.Connectivity Technology: Wireless
Bluetooth 4.1 with AAC codec support and Apt-X compatibility provides exepctional sound quality via crystal-clear wireless transmission
Up to 10 hour battery life with USB charging. Charging time:Approx. 1.5 hrs .Battery time-10 hrs (A2DP/HFP)