specificatio rated voltage 3vp-p operating voltage 3~25vp-p max.rated current max.3ma min.sound pressure level at 4.1khz / 3vp-p / 10cm min.65db capacitance at 100hz 12000 pf +/-30% resonant frequency 4100hz operating temperature -20 ℃ ~+80 ℃ storage temperature -30 ℃ ~+85 ℃ 本产品的加工定制是是,品牌是仁福/rf,型号是rf-sbz11017cy4003yb,种类是蜂鸣器(片),驱动方式是压电式(晶体式),是否有源是无源,材质是lcp,规格尺寸是11*9*1.7mm(mm),声道数是单声道