Adafruit Text-to-Speech Emic 2 Module - 924 12 channel the adapter's negative connector should

the adapter's negative connector should not be connected to a positive port

its the only wireless protocol that you can use with iOS without needing special certification and it's supported by all modern smart phones

or proximity

Standoff connections: Matches Raspberry Pi model A+

Adafruit Text-to-Speech Emic 2 Module - 924 12 channel the adapter's negative connector shouldGive Your Project a Voice Emic 2 Text to Speech Module The Emic 2 Text to Speech Module converts ASCII text into natural sounding speech in real time. Send it a string over serial UART and it speaks the words through an attached speaker no internet connection needed. Built on the DECtalk engine (the same technology used by Stephen Hawking), it supports multiple voices, adjustable pitch, and speech rate control. Technical specifications Engine DECtalk