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4G GSM Listening device

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  • OTP-C4G-PWV Voice Activated Remote Alarms GSM Power Bank Audio Sound Remote Monitor Surveillance Security Device

    4G GSM Listening device

    1、Voice Activated Start Voice Monitoring: when the system detects any sound, the device will automatically dial the master number
    2、SMS Alarm: when the system detect any sound, it would gives you an sms alarm
    3、Noice Reduction: HD sound monitoring, with full 4G network
    4、18W Fast Phone Charging: it supports 10000mah big rechargeable battery, also as a power bank
    5、Long-distance Voice Monitoring: even upto 20 meters

  • OTP-SG01 Super mini 4G GPS Tracking Web APP Tracking Voice Recorder

    4G GSM Listening device

    1、Multiple positioning mode: GPS+LBS

    2、Wordwide 4G, LTE-FDD:B1/B3/B5/B8,LTE-FDD:B34/B38/B39/B40/B41
    3、Service platform: IE&APP, Support Android&ios
    4、Automatic Time Update
    5、Tracking through the cell phone APP or the computer
    6、Tracking/APP voice recorder
  • OTP-SG02(S&M&L)-4G GPS Tracker IP67 Waterproof Strong Magnetic S M L Long Standby SOS Call Anti Lost Alarm for Vehicle Car

    4G GSM Listening device

     Multiple Positioning Mode: GPS+ AGPS+LBS+Wifi+BDS

    4G Bands: 4G4G: LTE-FDD:B1/B3/B5/B7/B8/B20 ,  LTE-TDD:B34/B38/B39/B40/B41
    2G Bands:GSM:B3/B5/B8
    Track: The user's specific location can be inquired through the cel phone APP or the computer
    Fence: Designate an area on the map by setting the device as the center point and the alarm wil be triggered off immediately once the user of the device goes into or out of this area
    PlayBack: Inquire the moving routes of the device in the past 3 months anytime and anywhere
    Remote Power-off: The device can be turned off through the APP on the guardian's cel phone
    Remote Restart: The device can be restarted through the APP on the guardian's cel phone
    Intelligent Power Saving: The device turns off/on the GPS and data upload in the time range specified through the APP on the guardian's cel phone
  • OTP-C4G-VD Voice remote monitoring DIY Module

    4G GSM Listening device

    1. Surround voice listening (automatically answer the call after dialing in)

    2. Voice-activated alarm (the module will automatically send SMS notification and call back if the volume exceeds the set volume)

    3. Remote SMS control

    4. Built-in Micro MEMS microphone,

    5. Built-in 3.7V 1000mAh lithium battery

     

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