Amazon.com: Sennheiser MB Pro 1 (506041) - Single-Sided, Wireless Bluetooth Headset | For Mobile Phone Connection | w/ HD Sound & Noise Cancelling Microphone (Black)
Sennheiser MB Pro 1 user manual (English - 30 pages)
Sennheiser MB Pro 1 | Onedirect.co.uk
Sennheiser MB Pro 1 UC ML Bluetooth Headset 506043 B&H Photo