Visaton 高音防水扬声器喇叭, 8Ω, 500mW, 8 cm (3 in) 和以下, 圆形, 300 Hz → 19 kHz

2.3cm/0.9in miniature speaker with a plastic diaphragm and square plastic basket with 4 mounting holes. Typical applications include voice and signal output in machines and other equipment both indoors and outdoors. Can also be used in model construction.