【Operation Confirmed】SONY U-CEIVER ICB-U90 / 2-unit set

■ Product Name
[Operation Confirmed] SONY U-CEIVER ICB-U90 / 2-Unit Set

■ Specifications etc.
◯ 2 transceivers equipped with 9 channels
◯ PARTY button switching function included
◯ 2 MIC jacks
◯ Foldable rod antenna
◯ Power-saving SONY, made in Japan
◯ While the transceiver function of Apple Watch is convenient, this is thought to be useful in times of disaster.
◯ Ideal for use during camping/events, etc.
◯ Each unit requires 3 AA batteries (batteries not included).
◯ Color / Gray

■ Background / Condition etc.
◯ This item is listed as part of my brother-in-law's belongings being organized.
It was only used 2 or 3 times when purchased, and then stored for a long period.
◯ I inserted batteries and confirmed operation, and as a result, confirmed normal operation. However, this is limited to basic operations and functions.
◯ Furthermore, a few years ago during long-term storage, I discovered battery leakage in one of the receivers and carefully removed and cleaned it. Traces of this remain somewhat pronounced.
◯ Image 7 shows the condition of a normal battery terminal. Image 8 shows the terminal after dealing with and processing battery leakage.
◯ Despite the aforementioned incident, there was no impact on the main unit's functions.
◯ Despite this defect, I believe both the exterior and functionality show very little signs of use (subjective).

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◉ Please confirm and evaluate using the images as well.
◉ Thank you for your understanding.