Dell DJ 2 - Manual (Page 49)

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Specifications
Hardware
Display LCD
160 x 104 resolution
blue EL back light
Storage media 20/30 GB HDD
Battery Embedded lithium-ion polymer
AC-in power (through dock connector) 5–5.4V,
≤
2.4A
PC connection (through dock
connector) USB 2.0/1.1
Dock connector 26-pin connector
Performance Parameters
Audio quality (specifications based on 32-ohm load at
1-kHz tone are typical values)
Signal-to-noise ratio up to 94 dB
Channel separation up to 90 dB (line-out)
up to 65 dB (headphones)
Frequency response 20 Hz–20 kHz (line-out)
24 Hz–20 kHz (headphones)
Harmonic distortion < 0.05% (line-out)
< 0.1% (headphones)