1. buzzer piezo transducer make sound drived by external signal 2. Dia 23*4mm with wire terminal 3. have stable quality

Type	Unit	HYR-2304
Rated Voltage(Square Wave)	V	12
Operating Voltage	V	1-30
*Rated Current(MAX)	mA	5
*Min Sound Output at 10 cm	dB	80
*Resonant Frequency	Hz	4000±500
Operating Temperature	°C	-20~+60
Storage Temperature	°C	-30~+70
Housing Material		ABS
Weight	g	2

ultrathin 23*4mm buzzer piezo transducer