Features General passive buzzer: Buzzer is a general passive buzzer with a resistance of 16 ohms and a voltage of 3V 5V 9V 12V AC 2KHz Working principle: Passive buzzer refers to the need for audio driving signal to make a sound. Corresponding to active buzzer, the driving mode and working principle are the same as ordinary speakers. High-strength shell: Passive buzzer uses high-quality materials to increase the strength of the shell, which can well avoid the loss of the internal structure, so that the buzzer module can be used for a long time. Application: AC buzzer has very good quality in all work, high stability, and can be used in electronic toys, printers, timers, computers, mobile phones and other electrical appliances Packaging: The buzzer module package contains a total of 50 buzzers. The large package is convenient for your daily use, so you don’t need to go to the store often to buy Features: Universal passive buzzer with a resistance of 16 ohms. The driving method and working principle are the same as those of ordinary speakers. A passive buzzer means that an audio drive signal is required to make it sound, corresponding to an active buzzer. The shell is of great strength and can protect the internal structure well. The buzzer module is really good quality at all working and of high stability.   Specification: Item Type:Electromagnetic Buzzer Resistance: 16ohm Voltage: 3V 5V 9V 12V AC 2KHz Package List: 50 x Buzzer Package List