Yellow Tamagotchi Yasashii (w/ rechargeable batteries mod!)

Great condition rare yellow Tamagotchi Yasashii.

Initially, this toy is not compatible with rechargeable batteries, as it would immediately indicate a low battery due to AA rechargeable batteries having a rating of 1.2V, in contrast to the 1.5V of standard AA batteries. However, I have developed and installed a mod that not only enables the use of rechargeable batteries but also extends the playing time significantly!

Screen, buttons and sound all work perfectly.
All buttons are clear and have not yellowed, plus all 6 red LEDs are in perfect working order.