| PartNumber | AOM-4540L-R | AOM-4540P-NF-R | AOM-4540P |
| Description | Microphones 2.2kOhm x 9.7mm | Microphones 2.2kOhm x 9.7mm | Microphones 2.2kOhm x 9.7mm |
| Manufacturer | PUI Audio | PUI Audio | PUI Audio |
| Product Category | Microphones | Microphones | Microphones |
| RoHS | Y | Y | N |
| Directional Properties | Omnidirectional | Omnidirectional | Omnidirectional |
| Impedance | 2.2 kOhms | 2.2 kOhms | 2.2 kOhms |
| Sensitivity | - 40 dB | - 44 dB | - 40 dB |
| Termination Style | Solder Pad | Solder Pin | Solder Pin |
| IP Rating | - | - | - |
| Diameter | 9.7 mm | 9.7 mm | 9.7 mm |
| Length | 9.7 mm | 9.7 mm | - |
| Width | 9.7 mm | 9.7 mm | - |
| Depth | 4.5 mm | 4.5 mm | 4.5 mm |
| Operating Supply Voltage | 1.5 V | 1.5 V | 1.5 V |
| Packaging | Bulk | Bulk | - |
| Series | AOM | AOM | AOM |
| Brand | PUI Audio | PUI Audio | PUI Audio |
| Length in | 0.382 in | - | - |
| Length mm | 9.7 mm | - | - |
| Product Type | Microphones | Microphones | Microphones |
| Factory Pack Quantity | 100 | 100 | - |
| Subcategory | Audio Devices | Audio Devices | Audio Devices |
| Width in | 0.382 in | - | - |
| Width mm | 9.7 mm | - | - |
| Mounting | - | - | Solderless |