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| PartNumber | EF-30037-000 | EF-31702-000 | EF-30038-000 |
| Description | Speakers & Transducers 7.87 X 5.59 X 4.01MM 119 SENS, 1S PORT | Speakers & Transducers RECEIVER | Speakers & Transducers 7.87 X 5.59 X 4.01MM 118 SENS, 12N PORT |
| Manufacturer | Knowles | Knowles | - |
| Product Category | Speakers & Transducers | Speakers | - |
| RoHS | Y | - | - |
| Product | Receivers | Receivers | - |
| Frequency | 6.1 kHz | - | - |
| Sound Pressure Level | 120.5 dBA | - | - |
| Impedance | 98 Ohms | - | - |
| Termination Style | Solder Pad | - | - |
| Length | 7.87 mm | - | - |
| Width | 5.59 mm | - | - |
| Depth | 4.06 mm | - | - |
| IP Rating | - | - | - |
| Packaging | Bulk | - | - |
| Series | EF/FEF | EF | - |
| Brand | Knowles | - | - |
| Length in | 0.31 in | - | - |
| Length mm | 7.87 mm | - | - |
| Product Type | Speakers & Transducers | - | - |
| Factory Pack Quantity | 25 | - | - |
| Subcategory | Audio Devices | - | - |
| Width in | 0.22 in | - | - |
| Width mm | 5.59 mm | - | - |
| Type | - | Receiver, Magnetic, Balanced Armature | - |
| Height | - | - | - |
| Termination | - | - | - |
| Size Dimension | - | - | - |
| Frequency Range | - | - | - |
| Shape | - | - | - |
| Power Rated | - | - | - |
| Power Max | - | - | - |
| PortLocation | - | - | - |
| Material Cone | - | - | - |
| Material Magnet | - | - | - |