Buzzer 3 V

From the shop's description

This is a round buzzer that operates around the audible 2kHz range. You can drive it directly from a 3 V PIC or arduino to generate the tones. Resonant Frequency: 2300 +/- 300 HZ Rated Voltage: 3 V Rated Current: 25 ma Min Sound output at 10 cm: 90 dB