xxhdavid

Size and Weight2
Height: 4.4 inches (111.0 mm)
Width: 2.32 inches (58.9 mm)
Depth: 0.28 inch (7.2 mm)
Weight: 3.56 ounces (101 grams)
Wireless3

802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
Bluetooth 2.1 + EDR
Maps-location based service4
Nike+ support built in5
Display

3.5-inch (diagonal) widescreen Multi-Touch display
960-by-640-pixel resolution at 326 pixels per inch
Camera, Photos, and Video

Video recording, HD (720p) up to 30 frames per second with audio; still photos (960 by 720) with back camera
VGA-quality photos and video up to 30 frames per second with front camera
Tap to control exposure for video or stills
Photo and video geotagging over Wi-Fi
Input and Output

30-pin dock connector
3.5-mm stereo headphone minijack
Built-in speaker
Microphone
Power and Battery6

Built-in rechargeable lithium-ion battery
Music playback time: Up to 40 hours when fully charged
Video playback time: Up to 7 hours when fully charged
Charging times: Fast charge in about 2 hours (80% capacity), full charge in about 4 hours
Audio

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
TV and Video

H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
Support for 1024 by 768 pixels with Apple VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)
Headphones

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

Three-axis gyro
Accelerometer
Ambient light sensor
System Requirements

Apple ID (required for some features)
Internet access3
Syncing with iTunes on a Mac or PC requires:
Mac: OS X v10.5.8 or later
PC: Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later
iTunes 10.5 or later (free download from www.itunes.com/download)7
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)

xxhdavid

xxhdavid

已卖:eek::eek::eek: