UNI-PEX Wireless Receiver WTS-322 with Tuner

This is a wireless receiver WTS-322 from UNI-PEX (ユニペックス) with an antenna and tuner. The power turns on and the LED lights up, but since there is no actual operating environment (wireless microphone) to test it, it is being listed as operation unconfirmed. Please consider it a lucky find if it works.

Main specifications for the unit and tuner from the manufacturer's website:
Unit: WTS-322
• Supports 2 channels
• 300MHz band single system
• A wireless receiver that can be used by incorporating up to 2 wireless tuner units SU-3000A (sold separately).
Power supply: AC100V 50/60Hz
Power consumption: 6W
Antenna input: 1 BNC connector input, phantom power output DC12V
Dimensions: Width 230mm x Height 46mm x Depth 215mm
Weight: Approx. 1.4kg
Excluding tax: ¥45,000

Tuner Unit: SU-3000A
• A wireless tuner unit that can be incorporated into carrying amplifiers CGA series, wireless receivers WTS-322, BX series wireless units AU-300, and wall amplifiers GV series.
• Used in combination with 300MHz band wireless microphones.
Power supply: DC12V (received from the main unit of the incorporated device)
Dimensions: Width 84mm x Height 30mm x Depth 122mm
Weight: Approx. 165g
Excluding tax: ¥28,000
It appears to still be on sale.

Regarding the product condition, there are some minor scratches and rust on the surface of the unit due to normal use. However, as personal perception may vary, it is listed as slightly scratched and dirty. There are no major dents or widespread rust visible.
Upon listing, the power was turned on, and the LEDs on the main unit and the included tuner were confirmed to be lit, but operation is unconfirmed.
Please refrain from purchasing if you are looking for a like-new item, require a warranty of operation, or are concerned about even minor details.
The original box, instruction manual, etc. (available for download from the manufacturer) are not included. Please understand that shipping materials will be used and recycled for simple packaging.
When making your purchase, please make your decision based on the product description and the posted photos. As this is a unique used item, returns will not be accepted.
If you have any questions, please feel free to ask before purchasing.
Due to the unconfirmed operational status, please feel free to discuss price reductions.