Behringer C-1U Condenser Microphone with 5m USB Cable

This is the C-1U, a high-quality condenser microphone with USB connection. Purchased on Amazon in January 2011. It's a long-selling product, and although the packaging (outer box) seems to have changed, it can still be purchased new for ¥9,398.

I used it once for Skype and then it slept in its package in my room.
- Connection Type: Microphone side: USB-B, PC side: USB-A
- Accessories: Microphone stand adapter, software CD, instruction manual

The USB cable is missing. To confirm operation, I purchased a third-party USB (B-A) cable separately (equivalent to ¥654 for Elecom U2C-JB50BK). Since the price wasn't significantly different, I chose a relatively long 5m cable for future users. This USB cable will also be included.

☆☆☆
There is some dirt on the body. I wiped it with detergent and ethanol, but it wouldn't come off.
☆☆☆

Regarding operation confirmation: I didn't notice it before, but when connected to my current PC, the volume seemed low. Many user reviews for the same product currently on sale have similar comments. Even with the microphone volume set to maximum in PC settings, it's still a bit low. I haven't adjusted it using the included CD (as it can usually be used just by connecting the USB cable).

★★★
Searching online revealed many instances of the C-1U having low volume issues. To ensure the buyer can use it with satisfaction, I tried one solution. I downloaded the free software Equalizer APO from Madogiwa and after installation, simply increasing the Gain from 0.0 to around 5.0 made the volume significantly louder, as shown in the image. With this method, I will fully support the buyer until the end.
★★★

Additionally, condenser microphones dislike humidity, so I took care during storage. Also, please note that the microphone picks up sound from the front when the microphone is upright, not from the top.

Will be shipped via RakuRaku Mercari Bin, size 60.