Features

1 in/2 Out USB audio interface with 24 bit/192 kHz audio resolution
1 Mic/Line/Hi-Z combo input with 48V phantom power supply and Input Gain control
2 colors Input level LED
Independent monitor output volume and headphone volume control
2 Level Meters
Connect to your mobile phone through OTG or 3.5mm jack
OTG input/output
High-Speed USB 2.0 and bus powered

Hardware Features MiDiPLUS Studio M Pro OTG USB Audio Interface

Mic/Line/Hi-Z combo input: Connect the microphone via XLR or use the 6.35mm jack to connect your instrument (such as an electric guitar) or line input
Input gain control: Adjust the gain level of the microphone, instrument or line input. Rotate counterclockwise to reduce the gain level and clockwise to
increase the gain level
Instrument input switch button: Switch instrument/line input of 6.35mm input. Line in when the button light is off, instrument in when the button light is on
48V phantom power switch: Turn on 48V phantom power supply of input 1/2 channel
OTG switch: The button lights Yellow means both the OTG Input and Output are turned on C) Press the switch, the button lights Red means turn on the route from mobile phone to OTG, press the switch twice to turn off the route C) Long press the switch over 2 seconds, the button tights Green means turn on the route from OTG to the mobile phone, long press the switch again to turn off the route
Headphone output level control: Adjust the headphone output level, rotate counterclockwise to reduce the level and rotate clockwise to increase the level, and the knob light is the USB status LED
Monitor output level control: Adjust the monitor outputs level. Rotate counterclockwise to reduce the level and clockwise to increase the level
Headphone output: 6.35mm stereo output, connect to your headphone
Monitor output: Connect to your monitor
3.5mm Phone jack: Connect to your mobile phone via the 3.5 TRRS cable
Type-C OTG port: Connect to your mobile phone via the Type-C cable
USB port: Connect to your computer

Start Using

Connect Connect the Studio M Pro OTG to a computer by using the included USB A to USB C cable, the USB status LED on the Headphone knob will light on.
Installation Windows: Go to http://www.midiplus.com/cn/support.aspx?ld=1 to download and install the latest driver. macOS: No need to install any drivers.
Setting the default sound device Windows: Go to Settings> System > Sound and then select the Studio M Pro OTG as your device for Input and Output. macOS: Go to System Preferences> Sound and then select the Studio M Pro OTG as your device for Input and Output.

Connection Example

Specifications:

Model	Studio M Pro OTG
Bit depth/Sample rate	24bit/192kHz
I/O	1 x Mic/Line/Hi-Z Combo Input 1 x 1/4″ Headphone Output 2 x 1/4″ Monitor Outputs 1 x 1/8″ Phone jack 1 x OTG port 1 x USB port
Buttons	1 x INST Switch 1 x OTG Switch 1 x 48V Switch
Knobs	1 x Input Gain control 1 x Monitor level control 1 x Headphone Volume control
Dimensions	116m m90m m46m m
Accessories	1 x USB Cable, 1 x Quick Start Guide 1 x 1/4″ to 1/8″ adapter lx Information paper 1x 1/8″ to 1/8″ TRRS cable

Midiplus Studio m