Tamagotchi P infrared help

Hello everyone, I am new here. I bought a tamagotchi P 6 years ago. I was never able to download the english patch Mr.Blinky has provided for tama users. Today I found out I am able to download the patch using an infrared usb. I tried looking around here for more information. Most of it is pretty outdated.

Does anyone know where or what kind of cheap infrared usb I can purchase?

I live in the US and have a computer that can send files through bluetooth.