8Pcs 8 Ohm 2W Speaker 8ohm Round 28mm Loud Speakers Compatible with Small Loudspeaker Audio MP3 MP4 Player Speaker

Easy to use and meets expectations for a small speaker.

They have loud volume in 10 - 12kHz range. Somebody asked about the connector: it's female 2.54 mm (0.1 inch) spacing which accepts 20 - 22 gauge pins.

Speakers work fine for their size and aren't as tinny as I'd have expected. However, they are shipped as an 8 pack with 4 on top and 4 on bottom. Being magnetic, the top group sticks to the bottom group and this crushed the cones on the bottom four. Not Amazon's fault, but it'd be nice if the manufacturer added a small sheet of cardboard into the bag between the groups to make sure they all survive shipping.

Very disappointed save your money three did not work

Speakers worked as advertised and fit perfectly in the tender of a HO locomotive with a sound decoder.

Had to replace a 20+ year old Radio Shack photo frame speaker. Worked just fine.

These speakers are just what I needed for my model train DCC installations. They are a little tight in my small 0-4-0 slope-back switcher steam locomotive, but they work very well. A good baffle for them is a 2-liter bottle cap. They will need sealing with glue, or something, though.

I disliked being charged twice for one order! Quality was poor, as some of the speakers had deformed flex-cones.