Amazon.com: Sennheiser CX 7.00BT Wireless In-Ear Headphone, Bluetooth 4.1 with Qualcomm Apt-X, NFC one touch pairing, 10 hour battery life, 1.5 hour fast USB charging, multi-connection to 2 devices : Electronics
Goondu review: Sennheiser CX 7.00BT plays it safe - Techgoondu Techgoondu
Sennheiser CX 7.00 BT Wireless Sports Hifi Bass In Ear Headset Bluetooth Stereo Earphone with Mic Fast USB Charging Multi-Connection to 2 Devices | Wish
Sennheiser CX 7.00BT | ▤ Full Specifications & Reviews