SparkFun 音频设备

扬声器与变频器 If you want to get some sound out of your project but have a tight space budget this is a good way to do it. This 2.5W 4 Ohm speaker is only 28mm in diameter and just over 4mm thick. The cable is roughly 180mm long and terminates in a 2-wire JST co

扬声器与变频器 This through-hole speaker is great for projects where you need something that sounds better than a piezo buzzer but don't have room for a full-blown speaker. This 30mm diameter speaker is encased in plastic and will handle about 1W of power.