With in-ear designs available at this price that offer exceptional noise-isolation – think Shure's SE110s – it's strange to find a noise-cancelling pair, which add a cigarette-lighter sized battery pack (not pictured) to a snug fit to shield your tunes from outside intrusion.
Odd, then, but fairly effective –boosted by a neat volume slider. Sadly, however, the sound is compressed and tiring – you can buy better
Panasonic RP-HC55 review
These Panasonic's are great on paper with an innovative battery pack, but are held back by compressed and tiring sound. Tested at £70.00

What Hi-Fi? Verdict
These Panasonic's are great on paper with an innovative battery pack, but are held back by compressed and tiring sound
Pros
- +
Innovative battery pack idea, effective noise isolation
Cons
- -
Tiring sound, compressed