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Handheld DTMF microphone with side PTT button and built-in speaker

BatteryJack inc.

BatteryJack inc. CH-98S-4 DTMF Microphone

SKU CH-9Y5C-72ZER

DTMF microphone with built-in speaker for compatible Icom mobile radios

  • Built-In SpeakerYes
  • Clear DTMF signalling for Icom IC-2100H, IC-2710H, IC-2720H, IC-2800H
  • Built-in speaker lets you monitor audio without a separate headset
  • Heavy-duty side PTT button withstands repeated mobile use
  • Comfortable grip reduces fatigue during long operating sessions
  • Simple plug-and-play connection gets you on air quickly

Purpose and users

The BatteryJack CH-98S-4 is a DTMF microphone designed for mobile radio operators who need a hand-held microphone with an integrated speaker. It suits vehicle-mounted installations where clear voice pickup and local audio monitoring are required.

Compatibility and limits

The microphone connects to Icom IC-2100H, IC-2710H, IC-2720H and IC-2800H transceivers, and also works with Hradio HM-133S and HM-98 models. It does not support radios outside this listed range, so owners of other mobile or base-station units will need a different microphone.

Upgrade context

This unit replaces a lost or worn original hand microphone for the compatible Icom and Hradio models. The jump is worthwhile when the existing microphone has a faulty PTT switch, damaged cable or degraded audio quality, restoring reliable push-to-talk operation and clear receive audio through the built-in speaker.

Highlights

  • Clear DTMF signalling for Icom IC-2100H, IC-2710H, IC-2720H, IC-2800H
  • Built-in speaker lets you monitor audio without a separate headset
  • Heavy-duty side PTT button withstands repeated mobile use
  • Comfortable grip reduces fatigue during long operating sessions
  • Simple plug-and-play connection gets you on air quickly

Specifications

BrandBatteryJack inc.
ModelCH-98S-4
Built-In SpeakerYes

Questions about this item

Will the CH-98S-4 DTMF microphone work with my existing IC-2800H mobile transceiver?

Yes, the microphone is listed as compatible with the IC-2800H as well as the IC-2100H, IC-2710H, IC-2720H and IC-207 models.

How can I confirm the built-in speaker and PTT button are functioning correctly after connecting the CH-98S-4?

Press the side-mounted PTT button to transmit; you should hear clear receive audio through the built-in speaker and your voice should be transmitted with DTMF tones.

Does the CH-98S-4 package include the microphone only or are any cables or adapters supplied?

The product is supplied as the DTMF microphone unit with integrated speaker and PTT button; no additional cables or adapters are mentioned in the specifications.

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