Product Name: 12mm SMD Piezo Buzzer 95dB Better Quality Speaker Model NO.: KT1203 Brand: Sz-Xdz Certification: ISO9001, RoHS Usage: Accept, Alarm Radiation Mode: Indirect Radiation Type Style: Mini Transducer Principle: Piezoelectric Earphone Cone: Plastic frame Transmission Mode: Air-conduction Category: Speaker Rated Voltage: 3vp-P Trademark: SZ-XDZ Transport Package: Export Standards for Buzzer Specification: 12x12mm x3mm Origin: China Product Description KT1203 Piezo Speaker is a special used prouct ,it can sound over 90dB,and good quality.