They had about 3 sets at Tesco Extra Prescot, Merseyside Today!
Next cheapest i could find @Dixons £59.13
The Sennheiser PXC 150 Headphones feature NoiseGuard, to ensure your listening pleasure is totally uninterrupted. Great for travelling and noisy environments, NoiseGuard actively cancels noise by up to 70%, leaving you with nothing but excellent sound and deep powerful bass!
The ultra lightweight and soft-ring ear pads make the Sennheiser PXC-150's comfortable to wear - for hours-on-end! They even come with two adaptors, compatible with in-flight entertainment systems!
Frequency 15-21000 Hz