| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | SMT-1220-TW-R | Projects Unlimited | SMT Audio Transducer, 3V, 35mA, 1.8-2.2kHz, Solder Pad |
 | SMI-1324-TW-3V-R | Projects Unlimited | 3V DC SMD Audio Indicator 2.4kHz 30mA |
| PB-12N32MP-05AQ |
| Mallory Sonalert |
| Piezo Transducer, 3.2kHz, 5V, 50mA, 85dB, 12mm |
 | POW-1644L-B-R | Projects Unlimited | MEMS Mic Omnidirectional Analog 2V 2.2kR IP57 |
 | EK-23024-C36 | Knowles | Analog MEMS Microphone, Omnidirectional, -53dB, 1.3V, 50uA |
 | AST-01708MR-R | Projects Unlimited | 17mm Dynamic Speaker, 8 Ohm, 1.5kHz, 0.5W, Round PC Pin |
 | POW-1644L-LWC50-B-R | Projects Unlimited | MEMS Mic Analog Omni 2.2kR 10V IP57 |
 | PK-27A35EPQ | Mallory Sonalert | 3.5kHz Audio Indicator, 12VDC, 95dB, Panel Mount |
 | SMT-0821-T-R | Projects Unlimited | SMD Magnetic Transducer, 2.1kHz, 2-5V, 90mA, 8.5x8.5x4mm |
 | AT-0927-TT-2-R | Projects Unlimited | 3V 70mA 20Ω Speaker Transducer, 2.73kHz, 86dB, Through Hole |
 | WP-23502-000 | Knowles | Analog MEMS Mic, Omnidirectional, -52dB, Waterproof |
 | SC628AHR | Mallory Sonalert | TRANSDUCER, PIEZO, 4.5KHZ, 80DBA, 28V - More Details |
 | SDR08540M3-01 | TDK | Audio Magnetic Transducer, 85mA, 2.67kHz, 3V, SMD |
 | POM-3535L-3-R | Projects Unlimited | MEMS Condenser Mic, Omnidirectional, Analog, 2.2kR, 3.5mm H, 6mm D, SMD |
 | AS07708PS-2-WR-R | Projects Unlimited | 8 Ohm 4W Dynamic Speaker, 90dB, Water Resistant |
 | SMT-0540-T-7-R | Projects Unlimited | SMD Magnetic Transducer, 2-4V, 4kHz, 100mA, -40-70°C |
 | AS07108PO-WR-R | Projects Unlimited | 8 Ohm 3W Water Resistant Dynamic Speaker |
 | SC110ER | Mallory Sonalert | 120V 10mA Panel Mount Audio Component |
 | SC110PR | Mallory Sonalert | Audio Indicator Piezo 30VDC/30VAC 120VDC/120VAC 19mA 68dBA 2600Hz to 3200Hz Panel Mount Screw Bulk |
 | SCH628PR | Mallory Sonalert | Audio Indicator Piezo 6VDC 28VDC 16mA 68dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
