Victor WT-PH31 IR Wireless Microphone Receiver - Junk Item

Purchased used 5 years ago when I built a karaoke system.
Confirmed that the power turns on. Other functions have not been tested.
This item is being sold as junk.

IR Wireless Microphone Receiver WT-PH31 with two volume adjustment knobs.

- Model Name: WT-PH31
- Microphone Volume Adjustment: 2 Volume Knobs
- Function: IR Wireless Microphone Receiver
- Power Switch: Yes
- Reception Sensitivity Adjustment: Yes

Thank you for looking.