This tiny 1" diameter speaker cone is the perfect addition to any small audio project where you need an 8 Ω impedance and will be using 0.5 W or less of power. It has a metal cone and is extremely lightweight.
You can use it with Adafruit 2.5 W Class D Mono Amplifier (PAM8302) to achieve high sound quality. 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 and damage it. Start with lower volume and increase carefully.