Colsan offer a selection of the components required for building covert communication devices.

We have a wide selection of receivers, DSP, faceplates and telecoils, giving you the building blocks for a covert communication device. We also supply finished product in the form of covert earpieces and neckloops. Below is a selection of receivers and microphones suitable for covert communication devices:

Miniature speakers (receivers) suitable for covert communication applications:

Part Code Sensitiv. RDC Imped. Nom. Dimensions (mm) Notes Data Sheet
1000 Hz drive level L W H
26A005/8 106.5 24 50 0.10 Vrms 5.3 3.1 2.6 Excellent mechanical shock protection PDF
41A007 95 55 76 0.15 Vrms 5.00 2.70 0.98 Smallest single receiver on the market PDF
44A004 98 28 38 0.105 Vrms 5.00 2.70 1.96 Smallest dual receiver on the market PDF
2315 104 1493 5900 0.35 mA MCM 6.30 4.29 2.96 Very robust PDF

Miniature telecoils suitable for covert communication applications:

Part code: Type Sensitivity@ 1kHz (dBV/0.1 A/m) Equiv. noise (dB MFL) Max lengt (mm) Max length (inch) Coat. Remarks Data sheet
TA 20 AD 01 Active Telecoil -49.5 30 4.8 0.189 standard EMI protected PDF
Type Sensitivity @ 1kHz (dBV/A/m) Inductance (mH) DC res. (Ohm) Max. Ø (mm) Max Ø (inch) Max length (mm) Max length (inch) Coat. Remarks Data sheet
T 10 AA 01 -55.7 275 2200 1.78 0.07 7.61 0.3 standard PDF

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