This 2.8" x 1.2" speaker is a fantastic addition to all audio projects that require 4 ohms impedance and 3W or less power. We love this speaker, especially for its small size and good sound level and quality because it's enclosed. It comes with a handy JST 2PH input cable for adding sound to your displays and other projects (this connector is part of the ~2.0mm pitch JST-PH series).
This speaker will work perfectly with any of our mono audio amplifiers, such as the PAM8302 or MAX98357A MAX98357A mono Class D amplifiers.
You can order the Mono Closed Speaker - 3W 4 Ohm from the Adafruit category at SAMM Market at a reasonable price, with same-day shipping and fast delivery.