FDB Audio Manufacture Co., Ltd.  

Product Name: 4'' Waterproof Installation Professional Speaker with 100V Transformer, IP46 Model NO.: ES104/ES104T THD: Non Monitor: No Screen Certification: CE, RoHS, CCC, ISO9001:2008 Speaker Material: Plastic Speaker System: Optional Combination Operation Mode: Wire / Remote Control Activity: Passive Hi-Fi: Not Hi-Fi Frequency Response(-3dB): 75Hz-20kHz Woofer: 1X4''(100mm)/1''voice Coil Lf Driver: 1X0.8''(20mm)/Dome Tweeter Rated Power: 10W/20W/40W/off/16? Sensitivity: 88dB 1 Watt/1 Meter Impedance: 16 Ohms Nominal Maximum Spl: 103dB Continuous, 109dB Peak Dispersion(-6dB): 120