magnetic sounder

基本解釋

Top provider of full range acoustic components: Piezo sounder, Magnetic sounder, Speaker and Microphone/Receiver.
全線聲學(xué)器件供應(yīng)商，產(chǎn)品包括：壓電發(fā)聲器，磁性發(fā)聲器，揚聲器及麥克風(fēng)/聽筒。
www.vadas-ic.com
The pull head and the pull ring on the zipper move to the closing end of the zipper; the iron sounder can separate from the magnetic body, and makes the sound to remind people to close the zipper;
拉鏈上的拉頭及拉環(huán)一向其閉合端移動，鐵質(zhì)發(fā)聲器就會脫離磁性體而發(fā)出響聲，提醒人們關(guān)閉好拉鏈；
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