Rolls MX44 Pro 4-Channel Stereo RCA & 3.5mm MixerThe Rolls MX44 Pro 4 Channel Stereo Mixer is designed to mix up to four stereo line level signals, such as CD, DVD, and MP3 players, laptops, and smartphones to a single stereo output. Each of the four channels includes a pair of RCAs and a stereo 3. 5mm TRS inputs, while the mixer's output offers a pair of RCA and a stereo 3. 5mm TRS connectors. Each channel features a level knob providing up to 30 dB of gain. The 3. 5mm TRS output can also function