| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | POM-3542L | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | POM-2738P | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 |
| POM-5238L |
| Projects Unlimited |
| Microphones 2.2kOhm x 6mm |
| TOM-1145S-C33 | Projects Unlimited | Microphones 2.2kOhm x 4mm |
| AT-1220-TT-3-R | Projects Unlimited | Speakers & Transducers 1.5V 73dBA 2048Hz |
 | INMP621ACEZ-R7 | TDK | MEMS Microphone, Omnidirectional, LGA, -40 to 85°C |
 | AB2036AF | Projects Unlimited | BUZZER ELEMENT FDBK 3.7KHZ 20MM |
 | GT-0930RP2 | Soberton | AUDIO MAGNETIC XDCR 2-4V TH |
| ZA048MACT | Mallory Sonalert | MALLORY ZA048MACT TRANSDUCER, ALARM, 85DBA, 48V, PANEL |
 | PB-1420PL-03AQ | Mallory Sonalert | Speakers & Transducers XDUCR, 1-4VPP 2KHZ, 14X5MM |
| MSR414NR | Mallory Sonalert | Audio Indicators & Alerts CONSTANT, 4-14VDC LOUD, 23X10MM, PINS |
| POM-2242L | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | POM-2742L-2 | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | POM-5246P | Projects Unlimited | Microphones 2.2kOhm x 6mm |
| TOM-3044L-R | Projects Unlimited | Microphones 2.2kOhm X 6mm |
| POM-3042L | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | SC628NP | Mallory Sonalert | Audio Indicator Piezo 6VDC 28VDC 16mA 86dBA 2400Hz to 3400Hz Panel Mount Quick Connect Bulk |
 | SMT-916 | Projects Unlimited | Speakers & Transducers EM 95dB 2730Hz 3Vpp |
| AOM-4544P-2 | Projects Unlimited | Microphones 2.2kOhm x 9.7mm |
| KPEG753 | Kingstate | Audio Indicator Piezo 6VDC 28VDC 17mA 12VDC 76dB 3100Hz to 4100Hz Panel Mount Solder Lug Box |
