Yamaha 7.2 Ch A/V Receiver w/Bluetooth & WiFi

Does this definitely include the ypao auto calibration microphone? Or is there a possibility that it wouldn’t be included since this is open box?

Also, is it correct that the warranty is only 30 days?

I don’t see anything about a microphone being included in this offer, but the Audio Features do include YPAO sound optimization.

And yes, this product only comes with Woot’s 30 warranty.