Microfone à prova d'água, alto-falante em 1 dispositivo de segurança externo para câmera IP, gravação de áudio, rádio bidirecional, interfone

Features: Plug Play Extremely Sensitive Great for Security Monitoring Higher S/N Ratio Range : 15 Square metres Sensitivity : 200mA/ubar Work current :5mA-60mA Work Voltage:6-12V Frequency:200-6000HZ Pronunciation membrane: rubber Speaker: waterproof, full frequency speaker. Speaker size: 40mm in diameter. impedance:4 Ω Voice coil: 16 core Magnet: single magnetic Power: 3W Microphone:Risym capacitive electret Waterproof MIC Input voltage:DC12V Pack : 1* Speaker and Microphone NOTE: Audio device doesn't include split power cord if you need one, please place order in this listing or you can place additional power supply for audio device: http://posting..com/wsproduct/product_detail.htm?productId=32833196960