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
Sennheiser's budget-friendly headphones get a high-end feature | Digital Trends
Hi-end In-ear Earphones Hifi 300 Ohms Flat Head Earphone Wired Earbuds Sliver Plated Wire Mobile Dac Portble Player - Earphones & Headphones - AliExpress
Sennheiser MOMENTUM True Wireless 3 Earbuds -Bluetooth In-Ear Headphones for Music and Calls with ANC, Multipoint connectivity , IPX4, Qi charging, 28-hour Battery Life Compact Design - Black - Walmart.com