There are two audio inputs and outputs. The volume of sound can be adjusted at one point for both input. Microphone input is available and when it opened automatically activate, also microphone volume can be adjust.
Technical Specifications;
2x25 Watt output power
Stereo output
When the microphone is On, the mic sound transmitted to speakers, at Off position the input signal transmitted to speakers
Adjustable microphone and input sound levels
Resistance to dust and vibration
Aluminum body