Charging via Power Adapter or USB to Computer System
Rated 5.1V–2.1A Max
audio playback
Frequency response: 20Hz to20,000Hz
Audio formats supported: AAC(8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible EnhancedAudio, AAX, and AAX ), Apple Lossless, AIFF, and WAV
User-configurable maximum volume limit
TV andVideo:
AirPlay Mirroring, photos, audio, and video out to Apple TV (2nd generation or later)
Video mirroring and video out support: Up to 1080p through Lightning Digital AV Adapter andLightning to VGA Adapter (adapters sold separately)
Video formats supported: H.264 video up to 1080p, 60 frames per second, High Profile level5.0 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 by480 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 ?le formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720pixels, 30 frames per second, audio in, PCM stereo audio in .avi file format