Descriptions
・Driver can keep talking, while driving in safety
・Hands Free Microphone for Mobile type transceivers
・Consisting of Main PTT button with RJ-45 modular connector, Remote PTT button, and Microphone
・LED in Main PTT button lights up when transmitting
・Push-ON and push-OFF operation for main PTT button
・Momentary operation for remote PTT button
Specifications
Dimensions | W 50.0 x H 18.2 x D 50.1 mm (not include cable) |
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Weight | 90 g, 3.2 oz (not include microphone and remote PTT switch) |
Cable Length | 2.5 m, 8.2 ft (not include microphone and remote PTT switch) |
All stated specifications are subject to change without notice or obligation.
Installation Image
Optional Accessories
IDAS Radios
Analog Radios
IP Radios
EXTENSION CABLE
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- HM-249
- HANDS FREE MICROPHONES
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- OPC-2500
- EXTENSION CABLE
Instruction Manual / Guides
Name | Model Name | Note |
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Instructions | HM-249 |


Ingress Protection (IP) Code
Ingress Protection (IP) ratings define the level of protection provided by enclosures to prevent the ingress of foreign objects (dust) and liquid into the electrical equipment.
International Standard IEC 60529 outlines an international classification system that describes the sealing characteristics of electrical equipment.
The classification system uses the “IP” code, or “Ingress Protection” code, to define the level of seal.
An IP number contains two numbers (i.e. IP67) in most instances which relate to the level of protection provided by an enclosure or housing.
Either number may be shown as “X” (i.e. IPX6 / IP7X) to indicate the “X” part is not tested.


Degrees of Solid Particle Protection – 1st Digit
IP6x | No ingress of dust; complete protection against contact. (Dust tight) |
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IP5x | Protected from the amount of dust that would interfere with normal operation. (Dust protected) |
Degrees of Liquid Ingress Protection – 2nd Digit
IPx8 | Protected against continuous immersion in water. Depth and duration specified by model. |
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IPx7 | Protected against temporary immersion in water for 1 m (3.3 ft) for 30 minutes |
IPx6 | Protected against water projected by powerful jets from any direction. 100 L per minute by a powerful jets (12.5 mm) for 3 minutes. |
IPx5 | Protected against water projected by jets from any direction. 12.5 L per minute by a nozzle (6.3 mm) for 3 minutes. |
IPx4 | Protected against water splashed against the equipment from any direction |
