| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PKM22EPPH4001-B0 | Murata | Piezo Buzzer 4kHz 25VDC Through Hole 22mm |
 | AI-1027-TWT-5V-R | Projects Unlimited | 5V DC Audio Indicator, 2.7kHz, 80dBA, Through Hole |
 |
| FG-23329-P07 |
| Knowles |
| Omni MEMS Mic, Analog Output, 10kHz, 50uA, 3V |
 | POW-1644P-B-R | Projects Unlimited | MEMS Microphone, Omnidirectional, 2V, 2.2kR, Analog Output |
 | MAS800Q | Mallory Sonalert | Piezo Buzzer 9-12VDC 50mA 2.7kHz 103dBA Radial Through Hole |
 | AI-3035-TWT-3V-R | Projects Unlimited | 30mm Piezo Indicator, 2-5V DC, 3.5kHz, Tin Plated |
 | ASI301Q | Mallory Sonalert | SMD Magnetic Buzzer 4-7VDC 2.4kHz 30mA |
 | AI-1223-TWT-5V-2-R | Projects Unlimited | 5V DC Audio Indicator, 2.3kHz, 30mA, Through Hole |
 | M2BJ-BH24D | Omron | 24V Buzzer, 3kHz, 16mm Dia, Panel Mount |
 | AST605Q | Mallory Sonalert | Magnetic Transducer, 4-7V, 2.4kHz, 50mA, SMD |
 | PKMCS0909E4000-R1 | Murata | Piezo Buzzer 12.5VDC 4kHz SM Solder Tape Reel |
 | PKLCS1212E20A0-R1 | Murata | Piezo Transducer 2kHz SMD 12.5V |
 | AST7525MATRQ | Mallory Sonalert | Piezo Buzzer 2.5-4.5V 2.7kHz 85dBA SMD Solder Tape/Reel |
 | AI-2604-TT-R | Projects Unlimited | Audio Indicator, 12VDC, 50mA, 400Hz, Through Hole |
 | PK-21A31PQ | Mallory Sonalert | Radial Piezo Indicator, 3-24V DC, 3kHz, 18mA, Through Hole |
 | SMT-0825-T-R | Projects Unlimited | Audio Transducer, 3.6V, 90mA, 2.5kHz, SMT, Solder |
 | AST-03208MR-R | Projects Unlimited | 8 Ohm 100mW Dynamic Speaker, 31.9mm Round, 82dB, Top Port |
 | AS07104PO-WR-R | Projects Unlimited | 4 Ohm 3W Water Resistant Dynamic Speaker, 100Hz-250Hz |
 | SMT-0826-S-R | Projects Unlimited | SMD Magnetic Transducer 2.63kHz 3.6V 90mA |
 | AS04004PO-WR-R | Projects Unlimited | 4 Ohm 4W Water Resistant Dynamic Speaker, 20kHz, 87dB |
