CAYIN Spark C6 Amplifier

Technical specifications:

USB digital audio input :

Support for Apple devices: iPhone5S/5C/5, iPhone4S / 4, iPhone 3G/3GS,
iPad (4/3/2/1 generation), iPad mini, iPod touch
D / A converter chip: WM8741
Sampling frequency: 44.1/48kHz @ 16bit
Analog audio input ¡œ 1000mV

Headphone output

Maximum output power: 130mW +130 mW (32 ohm load)
Frequency response: 20Hz-20kHz (+- 1dB) (AUDIO IN analog input)
Total harmonic distortion: ¡œ 0.05% (1kHz)
SNR: ¡ 98dB (A-weighted)
Lithium battery capacity: 2500mAh
Charging time: ¡œ 4 hours (need power off)
Life time: ¡ 8 hours (32ohm load)
Charge limit voltage: 4.2V
Size: 60mm x 20mm x 130mm (width / height / length)