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
                    YDB13B

                    FREQUENCY RESPONSE
                    DIMENSIONS Unit:mm
                    ELECTRICAL SPECIFICATIONS

                    Items
                    Specifications
                    Unite
                    Dimensions
                    Φ13*2.8
                    mm
                    Impedance
                    32±15% at 1000Hz
                    Ω
                    Rated Input Power
                    10
                    mW
                    Max.Input Power
                    30
                    mW
                    Resonant Frequency
                    Hz
                    Frequency Range
                    200~3400
                    Hz
                    Sound pressure Level(Min)
                    110±3 at 1mW
                    dB
                    Buzzes Rattles ect
                    Should not be
                    buzzes and rattles
                    Distortion
                    5% Max
                    Magnet
                    NdFeBΦ6.5*0.8
                    mm
                    Operating Temperature
                    -20~+60
                    Store Temperature
                    -30~+70
                    Mass
                    g
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