鉅發企業 ( 香港 ) 有限公司

5V Electromagnetic Active Buzzer 

Material: Black ABS

Operating voltage: 4-8V

Current drain: 30 mA

Min sound output: 85 dB at 10cm, continuous tone

Resonant frequency: 2300±300 Hz

Size: 9 x 11.8 mm (L x D)