Colorfly C4 Pro Pocket HiFi 32GB Music Player. The Colorfly C4 Pro Pocket HiFi is an MP3 Player like no other, it looks utterly bonkers and has a sound quaility rivaled only by a top end Hi-Fi. With it's complex chassis design and specific component selection the C4 Pro offers the ultimate in high quailty sound reproduction. Their patented 'Jitter Killer' technology adds to the quality by using two TCXO high precision crystal Oscillators and the CS8422 SRC chip from Cirrus Logic to output an unbelievable rate of jitter which is lower than 5ps. So buy this Colorfly C4 Pro Pocket HiFi 32GB Music Player Was £549.00 Now £494.10.