What's in the box:

EQ-231 Dual Channel 31-Band Equalizer 2U Rack Mount

Features:
Professional dual channels stereo graphic equalizer.
31-band design with 6 or 12db adjustable range for each channel.
LOW-CUT switch for effectively eliminating the low frequency noise.
BYPASS switch for convenient machine debugging.
Input gain knobs with 12db adjustable range.
XLR balanced and 1/4" TRS unbalanced inputs & outputs.
Standard 2U rack mount design, easy installation.

Specifications:
Material: Metal
Color: Black
Input Impedance: 20K Unbalanced/ 40K Balanced
Output Impedance: 330
Frequency Response: 20Hz~20KHz -1db
Total Harmonic Distortion: 0.05%
Signal to Nosie Ratio: >95dB
Plug: US
Working Voltage: 110-240V
Item Size: 48 * 13 * 9cm / 18.9 * 5.1 * 3.5in
Item Weight: 2.6kg / 5.7lb
Package Size: 53.5 * 28 * 12cm / 21.1 * 11 * 4.7in
Package Weight: 3.2kg / 7.1lb

Package List:
1 * Equalizer
1 * Power Cable (US)
1 * User Manual (Chinese & English)