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SM27W1 Wireless remote speaker microphone

Convenient voice communication with mobile radios.

    Product description

    The wireless remote speaker microphone SM27W1 offers you more flexibility in the use of mobile DMR and TETRA mobile radios from Hytera. Without a bothersome cable, you can communicate as usual via your radio.

    Remote control for your mobile radio

    Using the wireless speaker microphone, you can even remotely control your MD655, MD785/MD785G or MT680 Plus and, for example, select channels or regulate the volume. In so doing, you move up to 10 meters away from your radio.

    Required adapters

    For the use with DMR mobile radios, the adapter ADA-01 requires that your radio is connected to the audio accessories connection of your radio. The TETRA mobile radio MT680 Plus by contrast requires no additional adapter.

    Charging via USB cable

    The supplied bracket is also used for charging the wireless microphone. Alternatively, the supplied charging cable can be connected directly to the SM27W1.


    Technical data

    General Properties

    Programmable keys
    Battery capacity

    1100 mAh

    Battery service life (5/5/90)

    approx. 16 hours

    Charging time

    ≤ 3 h

    Operating temperature range

    -20 °C to 60 °C

    Protection against dust and moisture


    PTT service life


    Speaker properties


    97 ±3 dB (1 W / 30 cm) @ 300 Hz - 3 kHz AVE

    Nominal power

    2 W

    Maximum power

    3 W


    4 Ω ±15% @ 1.5 kHz 1 V (depending on the frequency)

    Microphone properties


    -42 ±2 dB @ 1 kHz (0 dB = 1 V/Pa)



    Features marked with * are available in future versions of the product.

    All technical data were tested according to the respective standards. Due to continuing development, technical changes are reserved.

    Scope of delivery

    • Wireless remote speaker microphone
    • Vehicle charging cable Micro USB
    • Microphone charging cradle with screws
    • Manual
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