Part number : 87LM16K
Power ： 15w -18w
Impedance : 4/8/16/32/50/ customizable
You Tube video link : https://youtu.be/skFVSD6JY_A?si=6Tgiv15XIyj6pLnf
More specification： https://www.soundbuzzer.com/good-sound-quality-waterproof-speaker-3-5-inch-ip67-horn-87mm-16ohm-15-watt-loudspeaker.html
Post time: Sep-06-2023