Remember the speaker options from an earlier post?

• 5 Pcs Internal Speakers Magnet 30x20mm 2500Hz 8Ohm 1W for PC Laptop (affiliate link, you might be able to find a better price)
• 8 Pieces 28mm 8Ohm 8Ω 1W Internal Magnetic Round Audio Speaker Loudspeaker BE (affiliate link)
• 1PC/2PC/4PC 28mm 8Ohm 8Ω 2W Audio Speaker Stereo Woofer Loudspeaker Trumpet Horn (affiliate link)

I found it amusing that the oval speaker vibrated around. But regardless, I choose it because it sounded OK enough, but more importantly, it fit on the PCB best.