http://www.astellnkern.com/eng/htm/ak10/ak10_feature.asp
General Specifications

Dimensions
Weight
Output Level
DAC

2.1 ”(54 mm) [W] x 2.1 ”(54 mm) [H] x 0.5 ”(13.15 mm) [D]
1.8 oz (51 g)
1.7Vrms (No Load)
Wolfson WM8740 24-bit DAC (High-End Audio DAC)

Input

USB 2.0
iOS
Android

USB Audio Device Class Specifications v1.0/2.0
Lightning Connector
Micro USB(OTG Support)

Output

Output

3.5 Stereo Mini-jack

Audio Performance

Frequency Response
Signal to Noise Ratio
Crosstalk
THD+N
Output Impedance

10Hz to 20kHz +/-0.02dB (24bit 48kHz, No Load)
110dB (1kHz 0dB, 24bit 48kHz, No Load)
106dB (1kHz 0dB, 24bit 48kHz, No Load)
0.008% (1kHz 0dB, 24bit 48kHz, No Load)
1.1 ohm

Battery

Capacity
Continuous Playback Time
Charge Time

1,100mAh 3.7V Li-Polymer Battery
Approximately 11 Hours (iPod Connection / 16bit 44kHz M4A Standard)
About 3.5 hours

Support Platform

iOS
Android


Windows
Mac OS

iPhone5th, iPod touch 5gen (Max 24bit, 48kHz)
Galaxy S3, S4, Note2 (Max 16bit, 44.1kHz)
Note3 (Max 24bit, 96kHz), Note3
Supports up to the JellyBean 4.1.2 OS / OTG Support
Windows XP, Windows Vista,7,8 (32/64bit) (Max 24bit, 96kHz)
Mac OS X 10.6.5 and up (Max 24bit, 96kHz)

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