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GSM Listening device

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  • OTP-GSM105 American standard socket type GSM monitoring

    GSM Listening device

    Features:
    Voice active monitoring .
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    AC power supply directly, without worrying about Working time.

  • OTP-GSM98IR Calculator Type Infrared Sensors Monitoring

    GSM Listening device

    Features:
    Infrared sensor active monitoring
    Phone number filtering function
    Voice active monitoring
    Disguised as a calculator, and the use of calculators can be normal.
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    Built in rechargeable polymer LIION battery, with capacity up to 5200mA

  • OTP-GSM91 Calculator type GSM voice monitoring

    GSM Listening device

    Features:
    Voice active monitoring .
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    Built in rechargeable polymer LIION battery, with capacity up to 5200mA
    Built in charger circuit allowed using in charge mode.

  • OTP-GSM92 Calculator type GSM voice monitoring

    GSM Listening device

    Features:
    Voice active monitoring .
    Disguised as a calculator, and the use of calculators can be normal.
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    Built in rechargeable polymer LIION battery, with capacity up to 5200mA
    Built in charger circuit allowed using in charge mode.

  • OTP-GSM93 Calculator type GSM voice monitoring

    GSM Listening device

    Features:
    Voice active monitoring .
    Disguised as a calculator, and the use of calculators can be normal.
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    Built in rechargeable polymer LIION battery, with capacity up to 5200mA
    Built in charger circuit allowed using in charge mode.

  • OTP-UK-38 UK Standard 1 to 2 Socket , GSM Monitoring

    GSM Listening device

    Features:
    Voice active monitoring .
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    AC power supply directly, without worrying about Working time.
     

  • OTP-UK38-2 UK Power Adapter Plug GSM Monitoring

    GSM Listening device

    Features:
    Voice active monitoring .
    Built in adjustable sensitivity voice active microphone.
    Built in High sensitivity monitoring amplifier microphone
    Built in phone number filter function, other phone will not allowed to monitoring.
    Can used SMS to set active or deactivate sound active mode.
    Built in shock alert active function, will call and send SMS when detect shock alert.
    Easy to operate, just install SIM card and SMS setting for all function modes
    AC power supply directly, without worrying about Working time.
     

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