Hi, apologies if this is in the wrong category, if so please move. I don't know anything about EE, however, I'd like to create a toy,if I can get the required help (I'm a fast learner and very determined). I've been looking for one of those toys that let parents send messages to their kid if separated from them and vice versa. Now, these types of toys already exist, but they're poorly executed or pose security risks as cloudpets for instance got hacked. What I'd like to create is a device, that allows the transmission of voice/text (this could enable deaf parents to communicate with young children too without the need for a phone) messages from either a phone or second device to a receiver device, that either glows or makes some sort of noise to alert to a waiting message and vice versa. It should also allow for a rechargeable battery and normal batteries, so it won't run out. I understand that this would most likely be far beyond my capabilities, but I'd like to hear some people's opinions on this and some tips on how to get started/materials knowledge needed. Thank you