Sennheiser CX 400BT - True wireless earphones with mic - in-ear - Bluetooth - white - Walmart.com
Sennheiser CX 400BT True Wireless review: New premium earbuds sound great but are a bit chunky - CNET
Amazon.com: Sennheiser Consumer Audio CX Plus True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls with Active Noise Cancellation, Customizable Touch Controls, IPX4 and 24-hour Battery Life