Same Sky's buzzer line utilizes two main technologies. Each technology has specific characteristics that must be taken into consideration depending on the end user’s application requirements. Piezo buzzers offer a wider operating voltage range, lower current consumption, higher rated frequency, higher sound pressure level (SPL), and are generally larger than magnetic buzzers. Magnetic buzzers are typically used in portable applications because they offer a smaller footprint. However, there are tradeoffs. When compared with piezo technology, magnetic buzzers have a narrow operating voltage range, higher current consumption, and lower available frequency and SPL levels.