What's in the box:

Muslady B4 Portable 4 Channels Audio Mixer USB Mixing Console Supports BT Connection with Sound Card Built-in 48V Phantom Power (Green)

Features:
Compact size 4-channel sound card mixing console with 2 XLR/TRS combined mono MIC/LINE input jacks and 2 TRS & 2 RCA stereo input jacks.
This mixer engaged with input gain, 2-band EQ(HIGH/LOW) and volume adjustment, delay time and repeat control knobs.
Built-in 48V phantom power is suitable for power supply to condenser microphone directly.
3.5mm high definition headset output port; support BT connection and MP3 player function; with sound card, can connect with PC directly.
5V low voltage power supply, can be powered by computer/ 5V power bank/ USB/ DC adapter, very convenient to use.

Specifications:
Brand: Muslady
Model: B4
Color: Red/Green/Yellow(optional)
Material: Plastic
Input Channel Sensitivity --
MIC: -60dB
Stereo Channel Input: -40dB
Effect Send: -20dB
Effect Return: -20dB
Outputs: 4V max.
Signal To Noise Ratio: -80dB
Parametric EQ --
HI: 15dB/12KHZ
LOW: 15dB/60KHZ
Item size: 17.6 * 18.8 * 5.6cm / 6.9 * 7.4 * 2.2in
Item weight: 550g/ 19.4oz
Package size: 24 * 24 * 9cm / 9.4 * 9.4 * 3.5in
Package weight: 1200g/ 43oz

Package List:
1 * Mixing Console
1 * Power Adapter
1 * USB Cable
1 * Users' Manual(English)