This tiny 1" diameter speaker cone is the perfect addition to any small audio project where you need 8 Ω impedance and will be using 0.5W or less of power.
Works great with our Wave shield or class D amplifier board. Just be careful not to overdrive it if you're using the class D amp breakouts as it can put 1.7W into the speaker, blowing it out! Start with lower volume and increase carefully.
Adafruit Product Page: https://www.adafruit.com/products/1890