1 Wire Moulded Airtube Earpiece with Inline PTT (Push to Talk) / Microphone


The acoustic airtube earpiece has been designed for covert surveillance where discreet communication is essential. The heavy duty design, exceptional audio output and sensitive microphone makes this a perfect product for discreet communications in complex environments. The moulded version combines the transducer and clothing clip as one, for a sleek and discreet finish.

They are designed for use in any industry but are particular favourites in security, police, casino, nightclub, hotel personnel, private detective and event organisation applications.


  • The earpiece can be replaced or interchanged with any of our other earpieces, including: Earbud, Earhook, D-Hook, G-Hook, or Long Airtube. This is a hygienic & cost-efficient way for staff to share radios and accessories.
  • Flexible and durable PU cable reinforced with Kevlar.
  • Surgical grade acoustic tube.
  • Discreet and comfortable.
  • Adjustable angle on airtube outlet.
  • Replaceable mushroom earpiece.
  • Optional noise-attenuating tip for loud environments.
  • Electret Condenser Microphone for fantastic audio quality.
  • Positive action PTT for reliable transmission.
  • 1 year manufacturer's warranty.

Available for all makes and models listed above. All other popular connector options are available on request. Please refer to the downloadable connector chart for more details.


Speaker Type:
Mylar Speaker
Speaker Dimensions:Ф 15.3mm
Speaker Impedance:18Ω ±20%
Rated Input Power:5mW
Max. Input Power:10mW for 60 seconds
Sound Pressure Level:99dB ±4dB/1mW at 1kHz
Distortion:5% Max. Rated Input at 1kHz

Microphone Type:ECM Microphone
Microphone Dimensions:Ф 6.0 x 2.7mm
Sensitivity:-42dB ±3dB (U=2.0V; R=2.2kΩ) at 1kHz
Working Voltage:1.0 ~ 10V
Current:≤0.5mA (U=2.0V; R=2.2kΩ) at 1kHz

Storage/Work Environment:-40°C ~ 70°C; 24H
Drop:152.4cm; 10 times
Bending (Cable):±90°; 30cycles/min; 200g load; 10000 cycles
Pulling (Cable):

Cable Pulling Force: 10kgf

Plug Pulling Force: 10kgf

Speaker, PTT/Microphone Pulling Force: 5kgf

PTT Life:100000 cycles
Electronic Static Discharge:

Connect Discharge: 8KV;

Disconnect Discharge: 15KV

Write a review

Note: HTML is not translated!
    Bad           Good
  • Views: 6541
  • Product Code: CRS-1WLATM
  • Availability: In Stock
  • $71.50
  • $64.35
  • Ex Tax: $58.50

Available Options

Tags: airtube-earpiece, 1wire, earpiece, acoustic, accessory, kenwood, icom, motorola, hyt, kirisun, sepura, simoco, tait, uniden, vertex, crs accessories

Icom MB-133 Belt Clip: Suits: Icom: BP-280, BP-278, BP-279, IC-41PRO, IC-41PRO-OR, IC-F100..
$22.22 $20.00
Ex Tax: $18.18