Sennheiser IE 100 PRO Wireless - Earphones with mic - in-ear - over-the-ear mount - Bluetooth - wireless, wired - 3.5 mm jack - noise isolating - red - Walmart.com
Sennheiser MM 100 Bluetooth Headset (Black) | Lazada
USPS Replacement for Sennheiser MM100 Bluetooth Headset 300mAh Repair Battery | eBay
Open box - Sennheiser MM 100 Wireless Bluetooth Neckband Headphones/Headset