10 Pcs Piezoelectric Piezo Ceramic Wafer Plate Dia 15mm For Buzzer Loudspeakerbrand new and Feature: copper material which has stable performance. The piezo buzzer is sounding ceramic piezoelectric which is suitable for miniaturization and roughing of electronic and electrical products. It can be used in electronic sound meters, household appliances, electronic toys, instrumentation, electronic thermometers, remote control devices, and other electronic, sound and warning products. Also be used as sound sensors for voice-activated electronics. Easy to install and easy to use. Specifications: Copper, PVC Diameter: 15mm/5.91"Quantity: 10 Pcs/SetNote:Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!No Retail PackagePackage Includes:10 x Buzzer Loudspeaker