Blackstar Polar Go Portable Audio Interface With MicThe Blackstar Polar Go is a pocket sized, 2 channel audio interface with built in ProCapture stereo microphones, delivering professional quality sound anywhere, no extra mics or equipment required. It features an XLR 1 4 inch combo input with phantom power for vocals, instruments, and line level sources, plus a 3. 5mm stereo output for low latency headphone monitoring. Compact and portable at just 3. 1 inches, Polar Go runs up to six hours on its