Two-Way Window Intercom System for Counter (RL-9909)
- Working Voltage: DC9V.
- Most Working Current: 500mA.
- Main sound box, sub-sound box: 2W-2W, 100Hz-15kHz.
- Inside Microphone: -48dB+(-)2dB, 20Hz-20kHz.
- Outside Microphone: -48dB+(-)2dB, 20Hz-16kHz.
- Exterior size: Main Box: 158*87*46mm; Sub-box: 91*77*23mm
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