The AS06608PS-2-R from PUI Audio, Inc. is an 8 Ω general-purpose speaker rated 500 mW, with a 300 Hz to 3.1 kHz response, in a top-port round, square-frame form factor.
The AS06608PS-WR-R from PUI Audio, Inc. is an 8 Ω general-purpose top-port round speaker rated 4 W, with a 230 Hz to 12 kHz frequency range and a square frame.