Ours is one of the earlist special factories,which manufacture sound equipments of message astir and buzzer,etc.Our factory has been dedicated to preparing opening up and manufacturing sound equipments for years and has manufactured all kinds of products with high quality that meet the consumers'needs.
                    Products
                    Category:Speaker
                    YDB40-1

                    Mylar Speaker
                    DIMENSIONS Unit:mm
                    TECHNICAT TERMS

                    Type                  (Ω)
                    YDB40-1
                    Rated Impedance            (Ω)
                    8±20%
                    Rated(Max.) Power           (W)
                    0.25(0.4)
                    Resonance Frequency          (Hz)
                    500±20%
                    Rated Freq.Range            (Hz)
                    f0~10000
                    Sound Pressure level at 0.25W 0.5m (dB)
                    80±3
                    Operating Temperature        (℃)
                    -40~+80
                    Size L×W×H              (MM)
                    42.5×39.6×15.4
                    Cone Material
                    Transparent Mylar
                    Frame Material
                    ABS

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