Model EP-0403 
Ear Hanger Earpiece with Mini Lapel PTT/Microphone for Two-Way Radio (EP-0403)
Transmit and receives
Soft and skin-friendly material provides comfort for long-time wear
Small lapel PTT with inline PTT/microphone and metal clip
Super flexible PU cable reinforced with Kevlar for maximum durability
Various brands are available
Model EP-0411 
Ear-hanger with Boom Mic
Ear-hanger (EHM-0411): NO. 04 PTT + NO. 11 Earphone Kit
The earphone can be matched into Motorola, Kenwood, Icom, Vertex, Yasue, etc. Two way radio brands depending different changeable plugs.
Earphone: Ear-hanger
PTT: Small collapsible PTT (iron-clip)
Microphone: Adjustable boom mic

Model TM-3225 
Heavy Duty Throat Microphone with Earphone for Two-Way Radio (TM3225)
Model 0625 
Transmits and receives
Comfortable to wear for long time
Discrete communications
Include 2 ear tips
With heavy duty Kevlar reinforced wire
Available for various brand radio
Speaker :
Dimensions: 16.2 +/- 0.2mm
Impedance: 250 +/- 50 Ohm
Sound pressure: 104 +/- 2dB
Microphone :
Type: Electret condenser
Im Operating voltage: 1.1 - 10VDC
pedance: 2.2 kOhm

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