
Acoustic Air Tube Series
Transparent sound tube isolates noise and reduces electromagnetic radiation to the ear. Balanced armature speakers stay clear even in noisy environments.





Acoustic Air Tube Series
Transparent sound tube isolates noise and reduces electromagnetic radiation to the ear. Balanced armature speakers stay clear even in noisy environments.
Specifications & Features
ER02DP11SB6_K_KH628A
- Dual-wire PTT design with transparent sound tube
- PU coil cable — tensile, durable and tangle-free
- Rotatable design for left/right ear use
- Balanced armature speaker stays distinct and intelligible even in noisy environments
- Suitable for various brands of two-way radios and transceivers
- Microphone size: 50 × 14mm
| Speaker Impedance | 200~450Ω ±20% |
|---|---|
| Sound Pressure Level | 116±3dB @ 1kHz |
| Rated Power | 10mW ~ 300mW |
| Mic Sensitivity | -38±2dB |
| Microphone Size | 50 × 14mm |
| Cable Length | 95/50/35cm |
ER02DP05SB6_K_KH208
- Dual-wire PTT design with transparent sound tube
- PU coil cable — tensile, durable and tangle-free
- Rotatable design for left/right ear use
- Transmits sound via air tube — sound insulation and noise reduction
- Suitable for various brands of two-way radios and transceivers
| Speaker Impedance | 8Ω±10% |
|---|---|
| Speaker Diameter | 12mm ±0.01mm |
| Mic Sensitivity | -38±2dB |
| Air Tube Length | 35cm |
| Main Cable Length | 95/50cm |
ER02DP01SB6_K_KH208
- Dual-wire PTT design with transparent sound tube
- PU coil cable — tensile, durable and tangle-free
- Rotatable design for left/right ear use
- Air-tube sound transmission with clear calls
| Speaker Impedance | 8Ω±10% |
|---|---|
| Speaker Diameter | 12mm ±0.01mm |
| Mic Sensitivity | -38±2dB |
| Air Tube Length | 35cm |
| Main Cable Length | 95/50cm |
ER02DP06SB6_K_KH484
- Dual-wire PTT design with transparent sound tube
- PU coil cable — tensile, durable and tangle-free
- Low-profile, simple appearance with good concealment
- Rotatable design for left/right ear use
- Transmits sound via air tube — sound insulation and noise reduction
- Compatible with ICOM, Standard, YAESU, KENWOOD and more
| Speaker Impedance | 32Ω±15% |
|---|---|
| Speaker Diameter | 12mm ±0.01mm |
| Mic Sensitivity | -38±2dB |
| Air Tube Length | 25cm |
| Main Cable Length | 85/50cm |
ER02DP28SB6_K_KH208
- Dual-wire PTT design with transparent sound tube
- PU coil cable — tensile, durable and tangle-free
- Rotatable design for left/right ear use
- Transmits sound via air tube — sound insulation and noise reduction
- Suitable for various brands of two-way radios and transceivers
| Speaker Impedance | 8Ω±10% |
|---|---|
| Speaker Diameter | 12mm ±0.01mm |
| Mic Sensitivity | -38±2dB |
| Air Tube Length | 35cm |
| Main Cable Length | 95cm |
ER02DP26SB6_S1
- Direct plug & play for ICOM radios
- Stealth air tube for privacy & noise reduction
- Ergonomic PTT button for all-day comfort & control
- Low-profile, simple appearance with good concealment
- Rugged, durable build for daily heavy use
| Speaker Impedance | 8Ω±10% |
|---|---|
| Speaker Diameter | 12mm ±0.01mm |
| Mic Sensitivity | -38±2dB |
| Air Tube Length | 35cm |
| Main Cable Length | 95cm |
ER02DP18SB6_K
- Listen and speak clearly without holding the radio
- Earhook design offers excellent concealment and clear voice transmission
- Compatible with ICOM, Standard, YAESU, KENWOOD and more
| Mic Sensitivity | -38±2dB |
|---|---|
| Air Tube Length | 35cm |
| Main Cable Length | 95cm |
ER02DP24SB6_K
- transparent_mic
- High-performance burn-resistant speaker
- High power output — clear and loud sound
- Stable sound quality, no distortion during long-time use
- High temperature & overload resistance
| Speaker Impedance | 8Ω±1Ω |
|---|---|
| Sound Pressure Level | 110±3dB @ 1kHz / 0.179V |
| Rated Power | 10mW rated / 30mW max |
| Frequency Response | 20Hz-20kHz |
| Distortion | <5% @ 1500Hz |
| Mic Sensitivity | -34±2dB |
| Air Tube Length | 35cm |
| Main Cable Length | 95cm |
ER02DP31SB6_M6
- R7 13-pin locking connector — no loose contact even in harsh conditions
- Clip-on dual PTT unit with easy-access mic
- Balanced armature speaker stays distinct and intelligible even in noisy environments
- Built-in mic and acoustic tube filter background noise
- Transparent air tube + soft silicone earbud for discreet wear
- Reinforced pull-resistant wire for security, law enforcement and industrial use
| Air Tube Length | 35cm |
|---|---|
| Main Cable Length | 95/50cm |
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