Trying to find a vibrating teether made by Infantino. Where can i find it?

Teether looks like a strawberry or a g from what i've seen. I can't believe Toysrus dont carry it!!! My son would love this teether. I've tried looking for it on Amazon, Target, Walmart and no luck!! Also when baby bites on it it will vibrate to mage his/her gums. Please if anyone know where i can find one let me know!