110-240V Audio Fenster Glas Zähler Gegensprechanlage Lautsprecher Krankenhaus Bank Lautsprecher
65,77 €
1 x Dual-way counter interphone. The main unit has aluminum alloy shell,and the extension has built-in speaker, This system has simple connection for DIY operation. Inside microphone:-48db±2db 20Hz-20KHz.
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