Electronic Buzzer,  91dB, 3/7" Diameter. Sold in multiples of 10pc. (price is for 1pc.).

Features:

• Miniature 91dB electronic buzzer
• 3-18VDC, surface mount or mount in 3/4” (19mm) hole of alarm panel or remote plate with removable mounting ring
• Low current drain of 35mA@12VDC