A mixer is a hardware to mix multiple soundtracks at the same time.
There are a lot of different priceclasses, we have searched the best for you!
Numark Party Mix Mischpult:
For beginners, it´s the perfect mixer.
Perfect quality and perfect intern soundcart! Only for 2 channel.
The same like the S2, but with 4 channel and more effects.
*This are Amazonlinks.