Adafruit STEMMA Speaker - Plug and Play Audio Amplifier

Key Features Easy to connect - Only need ground, 3 or 5V Power and an audio signal 1W 8Ohm speaker Class D Audio Amplifier Good sound quality for music, tones, or speech Adjustable volume With Adafruit STEMMA boards you can easily and safely plug sensors and devices together, like this Adafruit STEMMA Speaker - Plug and Play Audio Amplifier. Like the name implies, it's got a class D audio amplifier on board, and a little 1 Watt 8 ohm speaker.Connecting it up is easy - you only need ground, 3 to 5V power, and audio signal. The audio signal does not need to be AC coupled, we do that for you, and can range up to the power pin voltage (3 or 5V peak-to-peak). You can use either the 3-pin JST socket or the alligator/sew-pads for this slim and portable package. The sound quality is good enough for music, tones, speech, whatever you like and volume can be adjusted with a small screwdriver.Item Specifics1 - breakout boardSize: 37mm x 30.5mm x 7.2mmWeight: 7.5gJST PH2 plug NOT included