The iPod nano 4th Generation chromatic digital media player incorporates a strutting look along with the latest technology. Watch music videos or listen to music like never before with this Apple iPod, which has a LCD screen, with blue-white LED backlight. The built-in rechargeable lithium ion battery of this digital media player features a music playback time of up to 24 hours or video playback time of up to 4 hours, on a single charge. The headphones of this Apple iPod deliver crisp and clear music, with a frequency response of 20 Hz to 20,000 Hz. The 32 ohms impedance level in this digital media player renders balanced music from your headphones. The sleek and slim iPod nano 4th Generation chromatic plays most of the audio and video formats available today.