| PartNumber | FH-26555-000 | FH-26308-000 | FH-26553-000 |
| Description | Speakers & Transducers Balanced Armature Speaker | Speakers & Transducers Balanced Armature Speaker | Speakers & Transducers Balanced Armature Speake |
| Manufacturer | Knowles | Knowles | Knowles |
| Product Category | Speakers & Transducers | Speakers & Transducers | Speakers |
| RoHS | Y | Y | - |
| Product | Receivers | - | Receivers |
| Type | Balanced Armature | - | Receiver, Magnetic |
| Frequency | 6.3 kHz | - | 4.5 kHz |
| Sound Pressure Level | 100 dBA | - | 96dB |
| Impedance | 2.152 kOhms | - | 128 Ohm |
| Termination Style | Solder Pad | - | Solder Pad |
| Length | 5.09 mm | - | 5.09 mm |
| Width | 2.8 mm | - | 2.8 mm |
| Depth | 2.6 mm | - | 2.6 mm |
| IP Rating | - | - | - |
| Packaging | Bulk | Bulk | Bulk |
| Series | FH/FFH | FH/FFH | FH |
| Brand | Knowles | Knowles | - |
| Length in | 0.2 in | - | - |
| Length mm | 5.09 mm | - | - |
| Product Type | Speakers & Transducers | Speakers & Transducers | - |
| Factory Pack Quantity | 25 | 25 | - |
| Subcategory | Audio Devices | Audio Devices | - |
| Width in | 0.11 in | - | - |
| Width mm | 2.8 mm | - | - |
| Height | - | - | 2.60mm |
| Termination | - | - | Solder Pads |
| Size Dimension | - | - | 5.09mm L x 2.80mm W |
| Frequency Range | - | - | 200Hz ~ 4.5kHz |
| Shape | - | - | Rectangular |
| Power Rated | - | - | - |
| Power Max | - | - | - |
| PortLocation | - | - | Side |
| Material Cone | - | - | - |
| Material Magnet | - | - | - |
| Dimensions | - | - | 5.09 mm L x 2.8 mm W |
| Length in | - | - | 0.2 in |
| Length mm | - | - | 5.09 mm |
| Width in | - | - | 0.11 in |
| Width mm | - | - | 2.8 mm |