Display Type: NO Display Peanut-shaped earphones with flexible line, placed outside ears while enjoying music. Ears-protecting design Music File: MP3, ACC, WMA, upgradeable for future music formats; PC and Mac compatible Lyric Reading: NO A-B Reading: NO Outlook: Pink, Beige, Ivory, sliver and fancy colors for choice. Timber: Jazz, Normal, Classic, Popular, Bass and five more equalizer. Total harmonic distortion: ≤0.05% Earphone: Hi-fi FM: NO such a function Power Source: Inlaid lithium battery, supporting 3-5 hours playing time. Bus Writing speed: 400 KB/sec Multiple Play Mode: Normal, Repeat one, Repeat all. Record Function: No Weight: 21g Earphone size: 20X20X40mm Others: Earphone-shaped, applicable for users while jogging.