Features: Comfortable fit and distinctive design Powerful bass balanced with superb musical detail Good balance, precise reproduction Good noise isolation hear protection Powerful Bass SoundMagic's acoustic engineers have configured the ES11S to create exciting sound with powerful bass and balanced musical detail. The in-ear design combined with the right ear tip makes sure the sound is not lost or diluted. Sitting comfortably in the ear canal, the ES11S ensures hours of fatigue-free listening fun. Suitable for Sport The ES11S rugged construction and comfortable fit make it the perfect earphone for use in the gym or on the track. Included Accessories - SoundMagic ES11S Earphones in Black - Silicone ear tips in three different sizes (S/M)