15Pcs Buzzer Module Passive Low Level Trigger Electronics Audio Accessories 3.3V 5V

Feature: 1. Passive internal without oscillating source, need to use 2K 5K square wave to drive it 2. The sound frequency is controllable and can make a variety of different effects 3. The module is driven by 9012 triode and has stable performance. 4. The pin has good contact performance, ensure stable working 5. Fixed bolt holes for easy installation Specification: Item Type: Buzzer Module Working Voltage: 3.3V 5V Module Interface Description: VCC: External 3.3V 5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller) GND : External GND I O: External microcontroller IO port. Package List: 15 x Buzzer Module