A:Answer Since it is a line level output, it is possible. You will need a 3.5mm stereo to dual RCA Y cable.
BUT... You need to be very mindful of the levels of the microphone itself, and the output of the speakers. Also, you cannot have the microphone within a close proximity to the speakers or you will get feedback damage your hearing and possibly damage your speakers.
Please take my warnings to heart. The last thing I want you to do is damage equipment or even worse your hearing.