Size and weight

• Height: 1.48 inches (37.5 mm)
• Width: 1.61 inches (40.9 mm)
• Depth: 0.35 inch (8.78 mm) including clip
• Weight: 0.74 ounce (21.1 grams)1
• Volume: 0.614 cu. inch (10,056 cu. mm)

Display

• 1.54-inch (diagonal) color TFT display
• 240-by-240-pixel resolution
• 220 pixels per inch

Capacity2

• 8GB
• 16GB

Audio Playback

• Frequency response: 20Hz to 20,000Hz
• Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV
• User-configurable maximum volume limit

FM Radio

• Regional settings for Americas, Asia, Australia, Europe, and Japan
• Live Pause feature for pausing a radio broadcast and rewinding (within a 15-minute buffer)

Sensor

• Accelerometer

Battery and power6

• Built-in rechargeable lithium-ion battery
• Up to 24 hours of music playback when fully charged
• Charging via USB to computer system or power adapter (sold separately)
  • Fast-charge time: about 1.5 hours (charges up to 80% of battery capacity)
  • Full-charge time: about 3 hours

Headphones

• Earphones
• Frequency response: 20Hz to 20,000Hz
• Impedance: 32 ohms

Accessibility

• VoiceOver gesture-based screen reader
• High-resolution LCD display with adjustable backlight settings for easier reading in low light
• White on black display
• Mono Audio

System Requirements

• Mac computer with USB 2.0 port, OS X v10.5.8 or later, and iTunes 10 or later4
• PC with USB 2.0 port; Windows 7, Vista, or XP Home or Professional (SP3) or later; and iTunes 10 or later
• Internet access required; broadband recommended; fees may apply

Environmental requirements

• Operating temperature: 32° to 95° F (0° to 35° C)
• Nonoperating temperature: -4° to 113° F (-20° to 45° C)
• Relative humidity: 5% to 95% noncondensing
• Maximum operating altitude: 10,000 feet (3000 m)