Sennheiser HD 569 wired headphones noise isolation headphone
Sennheiser PXC 550 Wireless NoiseGard Adaptive Noise Cancelling, Bluetooth Headphone with Touch Sensitive Control and 30-Hour Battery Life - Black: Amazon.co.uk: Electronics & Photo
Sennheiser PXC 550 Headphones available from Hifi Gear
Sennheiser ACCENTUM Wireless Bluetooth Headphones - 50-Hour Battery Life, Audio, Hybrid Noise Cancelling (ANC), All-Day Comfort and Clear Voice Pick-up for Calls, White: Amazon.co.uk: Electronics & Photo
Sennheiser PC 3.2 Chat - Lightweight Stereo Headset with Adjustable Noise- Cancelling Microphone - for Internet Telephony and E-Learners - PC Connectivity- Great for Gaming, Work, and Study : Amazon.co.uk: Musical Instruments &
Sennheiser PXC 250-II Noise Cancelling Headphones available from Hifi Gear