High Sensitivity & Low Power Consumption 23mm copper plate piezoelectric buzzer; 1.5 to 30 volts operating range; 6.0 kilohertz resonant frequency; 15000 picofarad capacitance; 20 degrees Celsius to 70 degrees Celsius operating temperature; Easy Integration & Pre-Wired Design Pre-wired piezoelectric ceramic buzzer sheet; compatible with Arduino and Raspberry Pi; simple soldering or plug-in installation; ideal for DIY projects and electronic prototypes; Wide Operating Range & Durable Build Copper and ceramic construction; withstands -20 degrees Celsius to 70 degrees Celsius; resistant to mechanical stress; suitable for indoor and outdoor applications; Precise Frequency Response & Reliable Performance 6.0 kilohertz resonant frequency; ± 0.7 kilohertz tolerance; stable output under varying voltage conditions; ensures consistent sound generation; Versatile Application for Sound Detection Use as touch sensor or vibration detector; suitable for acoustic instrument pickups; works with homemade speakers and contact microphones; enhances creative electronics projects