| PartNumber | BK-21606-000 | BK-21600-000 | BK-21604-000 |
| Description | Speakers & Transducers Balanced Armature Speake | Speakers & Transducers Balanced Armature Speake | Speakers & Transducers Balanced Armature Speake |
| Manufacturer | - | - | Knowles |
| Product Category | - | - | Speakers |
| Series | - | - | BK |
| Product | - | - | Receivers |
| Type | - | - | Magnetic, Balanced Armature |
| Packaging | - | - | Bulk |
| Termination Style | - | - | Solder Pad |
| Height | - | - | 4.01mm |
| Length | - | - | 7.87 mm |
| Width | - | - | 5.59 mm |
| Frequency | - | - | 3.8 kHz |
| Impedance | - | - | 6 kOhm |
| Termination | - | - | Solder Pads |
| Sound Pressure Level | - | - | 114dB |
| Size Dimension | - | - | 7.87mm L x 5.59mm W |
| Frequency Range | - | - | 200Hz ~ 3.8kHz |
| Shape | - | - | Rectangular |
| Power Rated | - | - | - |
| Power Max | - | - | - |
| PortLocation | - | - | Side |
| Material Cone | - | - | - |
| Material Magnet | - | - | - |
| Depth | - | - | 4.01 mm |
| Dimensions | - | - | 7.87 mm L x 5.59 mm W |
| Length in | - | - | 0.31 in |
| Length mm | - | - | 7.87 mm |
| Width in | - | - | 0.22 in |
| Width mm | - | - | 5.59 mm |