PACKAGE CONTENT: Package includes 5pcs Active buzzer continuous beep. SKILL: All multi-chip integrated circuits using gold wire ball bonding. RATED VOLTAGE: 3V/5V, resistance: 16 ohm, size: 9 x 4.2mm / 0.35" x 0.17 : Complex production process, long life, stable performance, high rate of qualified products. ACTIVE: Active buzzer need only on the DC will beep,active buzzer internal oscillator., Weight: 0.0330693393 pounds, Manufacturer: Lcarege_F09_1005110