GMC1-38 Calculator type GSM voice monitoring

 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.

GMC2-38

GMC3-38Calculator type GSM voice monitoring