{"title":"Adafruit STEMMA Speaker - Plug and Play Audio Amplifier","handle":"adafruit-stemma-speaker-plug-and-play-audio-amplifier","url":"/products/adafruit-stemma-speaker-plug-and-play-audio-amplifier","description":"The Adafruit STEMMA Speaker combines a Class D audio amplifier with a 1W 8 Ω speaker in one slim, portable package. Connect ground, 3–5V power, and an audio signal via the JST-PH STEMMA connector or the alligator/sew-pads — no AC coupling needed, the board handles that for you.\n\nSound quality is suitable for music, tones, and speech. A small trim pot lets you adjust volume with a screwdriver. The audio input accepts signals up to the supply voltage (3V or 5V peak-to-peak).\n\nKey Features\n\n\nBuilt-In Class D Amplifier – Efficient audio amplification onboard\n\n1W 8 Ω Speaker Included – Ready to play audio out of the box\n\nSTEMMA JST-PH Connector – Plug-and-play with 3–5V microcontrollers\n\nAlligator/Sew Pads – Alternative connection method for Circuit Playground, micro:bit, and wearables\n\nAC Coupling Built In – No external capacitors needed on the input\n\nVolume Trim Pot – Adjustable with a small screwdriver\n\nSlim Form Factor – Compact and portable\n\n\nAlso Consider\n\n\nSTEMMA Audio Amp – Mono 2.5W Class D (PAM8302) – Higher power amplifier without speaker (BYO speaker)\n\n\nIdeal For\n\nCircuit Playground and micro:bit audio projects\nPortable sound effects and music playback\nInteractive displays and exhibits\nWearable audio devices\n\n\nPackage Contents\n\n1× STEMMA Speaker board with built-in amplifier and 1W 8 Ω speaker\n\n\n\nNote: JST-PH cable not included. Wire colours: red = power, black = ground, white = signal.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3009,"title":"Default Title","sku":"AF-3885","price":12.14,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}