10PCS New Ultra-thin 3V Active Buzzer Alarm AC 9MM*4.2MM 9x4.2MM 0942 MINI Active Piezo Buzzers Fit For Arduino Diy Electro

“No detailed reviews are available for this product. It is a standard ultra-thin 3V active piezo buzzer designed for Arduino and DIY projects. Without user feedback, its performance and reliability cannot be assessed.”