Radio Communications
- High efficiency, stability, and reliability
- Ideal for critical communications applications
- Realistic, high fidelity environmental sound pass-through
- Customizable performance and port locations
- Component and subassembly solutions
Knowles sub-miniature drivers are based on balanced armature technology. Their small size allows for smaller, lightweight radio communications earpieces suitable for all-day wear. Accurate sound reproduction provides both increased vocal intelligibility and accurate reproduction of environmental sounds passed through to the earpiece – important in critical applications such as military communications and ear protection devices.
Knowles balanced armature drivers are available in a number of sizes and efficiencies, which can be finely tuned to meet your specific performance requirements. They can be designed to fit inside ear molds, assembled into earpieces, or be sub-assembled by Knowles into your communications device.
Select a product category to view features, benefits, documents and performance details
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| BK-21600-000 | No Downloads available for BK-21600-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 118 | 12S | 730 | 285 | No | 124 | 137 |
| BK-21604-000 | No Downloads available for BK-21604-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 118 | 12S | 6000 | 2320 | No | 124 | 137 |
| BK-21610-000 | No Downloads available for BK-21610-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 121 | 12S | 145 | 60 | No | 124 | 137 |
| BK-21613-000 | No Downloads available for BK-21613-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 118 | 1S | 1200 | 450 | No | 124 | 137 |
| BK-21615-000 | No Downloads available for BK-21615-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 118 | 12S | 1200 | 450 | No | 124 | 137 |
| BK-21669-000 | No Downloads available for BK-21669-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 118 | 12C | 49 | 24 | No | 124 | 137 |
| BK-23134-000 | No Downloads available for BK-23134-000 | BK | 7.87mm x 5.59mm x 4.04mm (.250in x .170in x .119in) | 118 | 12S | 730 | 285 | No | 124 | 137 |
| CB-22849-000 | No Downloads available for CB-22849-000 | CB | 25.15mm x 25.40mm x 9.65mm (.990in x 1.000in x .380in) | 73 | Edge | 24 | 24 | 77 | 93 | |
| CB-22850-000 | No Downloads available for CB-22850-000 | CB | 25.15mm x 25.40mm x 9.65mm (.990in x 1.000in x .380in) | 48 | Edge | 48 | 48 | 77 | 93 | |
| CI-22748-000 | No Downloads available for CI-22748-000 | CI | 9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) | 125 | 12C | 250 | 0 | No | 130 | 143 |
| CI-22762-000 | No Downloads available for CI-22762-000 | CI | 9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) | 125 | 1S | 175 | 0 | No | 130 | 143 |
| CI-22955-000 | No Downloads available for CI-22955-000 | CI | 9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) | 125 | 12C | 68 | 0 | No | 130 | 143 |
| CI-22960-000 | No Downloads available for CI-22960-000 | CI | 9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) | 125 | 12C | 400 | 0 | No | 130 | 143 |
| CI-28487-000 | No Downloads available for CI-28487-000 | CI | 9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) | 125 | 1S | 100 | 0 | No | 130 | 143 |
| CI-28597-000 | No Downloads available for CI-28597-000 | CI | 9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) | 125 | 11S | 68 | 0 | No | 130 | 143 |
| CM-23152-000 | No Downloads available for CM-23152-000 | CM | 8.38mm x 16.64mm (.330in x .655in) | 103 | 12C/Face | 150 | 111 | 116 | ||
| CM-23299-000 | No Downloads available for CM-23299-000 | CM | 8.38mm x 16.64mm (.330in x .655in) | 103 | Face | 150 | 111 | 116 | ||
| DTEC-30008-000 | No Downloads available for DTEC-30008-000 | DTEC | 7.87mm x 4.09mm x 5.59mm (.310in x .161in x .220in) | 123 | 12S | 39 | 35 | No | 128 | 142 |
| DTEC-30265-000 | No Downloads available for DTEC-30265-000 | DTEC | 7.87mm x 4.09mm x 5.59mm (.310in x .161in x .220in) | 123 | 12S | 22 | No | 128 | 142 | |
| EC-23097-000 | No Downloads available for EC-23097-000 | EC/FEC | 7.59mm x 4.34mm x 3.73mm (.299in x .171in x .147in) | 108 | 12S | 400 | 200 | No | 116 | 130 |
| EC-23098-000 | No Downloads available for EC-23098-000 | EC/FEC | 7.59mm x 4.34mm x 3.73mm (.299in x .171in x .147in) | 108 | 12S | 840 | 425 | No | 116 | 130 |
| EC-26368-000 | No Downloads available for EC-26368-000 | EC/FEC | 7.59mm x 4.34mm x 3.73mm (.299in x .171in x .147in) | 108 | 12S | 100 | 54 | No | 116 | 130 |
| ED-21744-000 | No Downloads available for ED-21744-000 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 104 | 12C | 3050 | 1700 | No | 116 | 128 |
| ED-21913-000 | No Downloads available for ED-21913-000 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 104 | 12C | 1450 | 780 | No | 116 | 128 |
| ED-23147-000 | No Downloads available for ED-23147-000 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 104 | 12C | 87 | 48 | No | 116 | 128 |
| ED-23619-000 | No Downloads available for ED-23619-000 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 104 | 12C | 10.2 | 7.1 | No | 116 | 128 |
| ED-29689-000 | No Downloads available for ED-29689-000 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 104 | 12C | 10.2 | 7.1 | No | 116 | 128 |
| EF-21942-000 | No Downloads available for EF-21942-000 | EF/FEF | 7.87mm x 5.59mm x 4.01mm (.310in x .220in x .158in) | 125 | 12S | 641 | 250 | No | 121 | 139 |
| EH-23030-000 | No Downloads available for EH-23030-000 | EH/FEH | 5.19mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 100 | 12C | 1055 | 625 | No | 110 | 128 |
| EH-23149-000 | No Downloads available for EH-23149-000 | EH/FEH | 5.19mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 100.5 | 12C | 185 | 110 | No | 110 | 128 |
| EP-24075-000 | No Downloads available for EP-24075-000 | EP | 6.33mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 106 | 12C | 50000 | 50000 | 116 | 128 | |
| ES-23127-000 | No Downloads available for ES-23127-000 | ES | 5.19mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 101 | 12C | 50000 | 50000 | 110 | 128 | |
| ES-23140-000 | No Downloads available for ES-23140-000 | ES | 5.19mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 101 | 12C | 50000 | 50000 | 110 | 128 | |
| FC-26171-000 | No Downloads available for FC-26171-000 | FC/FFC | 5.17mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 104 | 12C | 225 | 170 | No | 112 | 124 |
| FC-26887-000 | No Downloads available for FC-26887-000 | FC/FFC | 5.17mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 100 | 12C | 550 | 425 | No | 112 | 124 |
| FED-26792-I02 | No Downloads available for FED-26792-I02 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 102 | 12C | 100 | 65 | Yes | 116 | DDL |
| FED-30048-I04 | No Downloads available for FED-30048-I04 | ED/FED | 6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) | 103 | 12N | 29 | 26 | Yes | 116 | DDL |
| FFH-23375-I02 | No Downloads available for FFH-23375-I02 | FH/FFH | 5.09mm x 2.80mm x 2.59mm (.200in x .111in x .102in) | 96 | 12S | 500 | 330 | Yes | 109 | DDL |
| FH-23377-000 | No Downloads available for FH-23377-000 | FH/FFH | 5.09mm x 2.80mm x 2.59mm (.200in x .111in x .102in) | 100 | 12S | 1030 | 685 | No | 109 | 124 |
| FH-23821-000 | No Downloads available for FH-23821-000 | FH/FFH | 5.09mm x 2.80mm x 2.59mm (.200in x .111in x .102in) | 100 | 12S | 260 | 174 | No | 109 | 124 |
| FH-26553-000 | No Downloads available for FH-26553-000 | FH/FFH | 5.09mm x 2.80mm x 2.59mm (.200in x .111in x .102in) | 100 | 12S | 130 | 80 | No | 109 | 124 |
| FK-23451-000 | No Downloads available for FK-23451-000 | FK | 5.00mm x 2.73mm x 1.93mm (.197in x .108in x .078in) | 95.5 | 12S | 630 | 450 | No | 108 | 123 |
| FK-23466-000 | No Downloads available for FK-23466-000 | FK | 5.00mm x 2.73mm x 1.93mm (.197in x .108in x .078in) | 95.5 | 12S | 630 | 450 | No | 108 | 123 |
| FK-26260-000 | No Downloads available for FK-26260-000 | FK | 5.00mm x 2.73mm x 1.93mm (.197in x .108in x .078in) | 96 | 12S | 240 | 180 | No | 108 | 123 |
| GQ-30710-000 | No Downloads available for GQ-30710-000 | GQ | 6.30 x 4.29 x 4.92 (mm) | 106 | 12S | 90 | 51.7 | n/a | not available | not available |
| GQ-30783-000 | No Downloads available for GQ-30783-000 | GQ | 6.30 x 4.29 x 4.92 (mm) | 109.5 | 12S | 37 | 21.5 | n/a | not available | not available |
| HC-23761-000 | No Downloads available for HC-23761-000 | HC/FHC | 5.17mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 101 | 12C | 14.6 | 8.4 | No | 116 | 123 |
| RAB-32033-000 | No Downloads available for RAB-32033-000 | RAB series | 5.15mm x 2.96mm x 2.58mm (.203in x .117in x .101in) | 106 | 12C | 50 | 33.5 | No | N/A | N/A |
| RAB-32063-000 | No Downloads available for RAB-32063-000 | RAB series | 5.15mm x 2.96mm x 2.58mm (.203in x .117in x .101in) | 103.5 | 12C | 46.3 | 30.5 | No | N/A | N/A |
| RAB-32257-000 | No Downloads available for RAB-32257-000 | RAB series | 5.15mm x 2.96mm x 2.58mm (.203in x .117in x .101in) | 105.5 | 12C | 48 | 33 | No | N/A | N/A |
| SR-31843-000 | No Downloads available for SR-31843-000 | SR | 6.40mm dia x 3.99mm (.252 dia x .157in) | 105 | Face | 46 | 32.5 | n/a | - | - |
| SR-32453-000 | No Downloads available for SR-32453-000 | SR | 6.40mm dia x 3.99mm (.252 dia x .157in) | 105 | Face | 46 | 32.5 | n/a | - | - |
| SR6438NWS-000 | No Downloads available for SR6438NWS-000 | SR | 6.40mm dia x 3.99mm (.252 dia x .157in) | 109.5 | Face | 55.5 | 36.5 | n/a | - | - |
| TEC-30033-000 | No Downloads available for TEC-30033-000 | TEC | 7.87mm x 4.09mm x 2.79mm (.310in x .161in x .110in) | 117 | 12C | 59 | 31 | No | 118 | 138 |
| TWFK-30017-000 | No Downloads available for TWFK-30017-000 | TWFK | 5.00mm x 2.73mm x 3.86mm (.197in x .108in x .152in) | 95 | 12S | 43 | 31 | No | 110.5 | 123.5 |
| WBHC-23910-000 | No Downloads available for WBHC-23910-000 | HC/FHC | 5.17mm x 3.55mm x 3.00mm (.204in x .140in x .118in) | 95 | 12C | 145 | 130 | No | 114 | 121 |