Reply to Teaching letters?

This toy (leapfrog fridge phonics, amazon link below) is legitimately amazing. It’s an apple they put the letter in and it says it and makes the sound. My sister raved about this and I was skeptical but she bought me one and my 23 month old knows ALL of the letters, he says most of them too. I’m not going to lie to you, it can be very annoying 😂 “b says buh, every letter makes a sound b says buh” 300 times in a row can make you crazy but it works! My only complaint is they don’t sell lowercase letters for it. Best $20 spent ever. Everywhere we go he loves pointing out the letters he sees on signs and stores. 😁 https://www.amazon.com/LeapFrog-Fridge-Phonics-Magnetic-Letter/dp/B0765ZFJ7Q/ref=mp_s_a_1_3?crid=31BBDHW88XX54&keywords=leapfrog+fridge+phonics+magnetic+letter+set&qid=XXX-XXXX&s=gateway&sprefix=leapfrog+fridge+&sr=8-3