Cyberdrive-Hi-Res/Bass Earphone/Black (offer while stocks last) High-Resolution Audio with certified Hi-Res by the Japan Audio Society. All aluminium construction premium-quality in-ear headphones to relay the magic of high-fidelity sound. Vigorous and deep. Full of flexibility. Warm and refined treble sound Professional audio tuning technology, the best sound for your ears only Spacious and authentic audio impression.