Features:
4-channel compact size mixing console designed for home recording, network live broadcast, , etc; 5V low voltage design, can be powered by , or 5V via the USB 2.0 jack or USB jack.
2 TRS & XLR combined mono inputs for connection of microphone, instrument or other ; Stereo/mono TRS inputs for connection of an audio source with line signal level; 3.5mm AUX input jack for connection of smartphone or other device to use applications to trigger sound effects or background .
Stereo TRS outputs for connecting another mixer, or recorder; 6.3mm jack for connection of stereo headphone, and 3.5mm headset connection with headset microphone input jack and headset headphone output jack can unnecessary noise.
CH1 & CH2 have GAIN, 2-band EQ(HIGH & LOW), PAN and LEVEL controls; the CH1 with +48V for condenser microphone; CH3 & CH4 with GAIN switch and LEVEL control; TO PC slide switch can select the sound to send to the (DRY CH1-2/ INPUT MIX/ LOOPBACK).
When connecting the mixer with a using the included USB 2.0 cable, the suppliers to the mixer, at the same , audio data can be sent between the mixer and .

Specifications:
Model: AGM04
CH1 XLR: 1.5mV/2.2k ohm
CH2 XLR: 2.5mV/2.2k ohm
CH1 Jack: 10mV/12k ohm(line)
CH2 Jack: 15mV/240k ohm
CH3/4: 550mV/22Kohm
AUX IN: 280mV/10Kohm
Output Level: main mix out--max.6.5V, stereo out-- 1.0V, / out-- max. 6.5V
Frequency : 10-33000Hz, +/-3dB
THD: <= 0.05%
Low : ±15dB/80Hz
High : ±15dB/12kHz
Headphone: Impedance: >=8 ohm
: +48V
: USB 5V 500mA
Operating System: 2000/XP/7/ or higher; OS 9.1/ OS X or higher
Item Size: 12.8 * 19.2 * 4.7cm / 5.04 * 7.56 * 1.85in
Item Weight: 760g / 1.7lbs
Package Size: 24 * 17.5 * 10cm / 9.4 * 6.9 * 3.9in
Package Weight: 1015g / 2.2lbs

Package List: I4049
1 * Mixing Console
1 * USB Cable
4 * Foot Pads
1 * Users' Manual(English & French & German & Italian & Spanish & Japanese)