Professional grade 4G LTE covert audio transmitter featuring a detachable 1-meter external MEMS microphone for flexible concealment. The Z95G supports live VoLTE real-time call-in monitoring, 7-day voice-activated motion standby, automated file uploads to secure cloud servers or private FTP, and 16kbps OGG bandwidth-efficient compression. Engineered for tactical security teams and remote acoustic surveillance operations.
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Z95G 4G LTE Covert Audio Transmitter & Live Listener
295 €369 €
Z95G – 4G LTE Covert Audio Transmitter with External Microphone
When remote real-time listening and flexible microphone placement are required, standard voice recorders fall short. The Z95G 4G Audio Transmitter combines cellular connectivity with a detachable high-sensitivity external MEMS microphone, allowing operators to hide the transmitter unit securely while placing the microscopic microphone precisely where conversation happens.
Key Features & Advanced Capabilities
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Detachable 1-Meter External MEMS Mic: Gives you the freedom to position the microphone up to 1 meter away from the main unit—ideal for threading into room corners, behind paneling, or inside custom enclosures.
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Live 4G VoLTE Real-Time Listening: Call into the device on-demand over global 4G networks for instantaneous, low-latency audio monitoring from anywhere in the world.
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Voice-Activated Standby & Alerts: Operates in silent standby mode for up to 7 days, instantly waking up to record and send push notifications to iOS and Android mobile apps when sound is detected.
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Automated Cloud & Private FTP Uploads: Captured audio files are automatically compressed and uploaded to a secure cloud server or your agency’s dedicated FTP destination.
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Bandwidth-Efficient OGG Compression: Uses optimized 16kbps OGG audio formatting to minimize mobile data consumption during extended long-term deployments.
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Dual Power & Endurance Options: Powered by a rechargeable 1200mAh battery providing 20 hours of continuous active recording, or plug into USB power for permanent 24/7 installations.
Primary Applications & Use Cases
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Tactical Covert Surveillance: Deploy in complex environments where separate concealment of the transmitter body and microphone element is necessary.
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Remote Room & Asset Monitoring: Maintain continuous auditory awareness over remote facilities, offices, or valuable mobile assets across international borders.
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Private Investigations & Auditing: Gather real-time intelligence with secure remote access and automated off-site file backups.
Technical Specifications
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Cellular Connectivity: Global 4G Bands with 2G Fallback (Nano SIM Required)
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Microphone: Detachable External MEMS Mic with 1-Meter Cable (Extendable up to 6m)
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Audio Pickup Range: Up to 8 Meters (26 ft)
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Live Monitoring: Real-time 4G VoLTE Call-In & Mobile App Support (Android/iOS/Windows/Mac)
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Battery Performance: 1200mAh Li-ion — 20 Hours Continuous / 7 Days Voice Standby
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Audio Format & Storage: OGG Compression (16kbps) / 8MB Internal Buffer + Server Upload
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Security Category: Audio Surveillance / Covert Transmitters / Remote Listening Devices
| Weight | 0,5 kg |
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Specifications
- Network: 4G Global Bands + 2G fallback
- Live Listening App: Android / iOS (“Audio Monitor”)
- PC Software: Windows / Mac (“Audio Widget”)
- Battery: 1200mAh Li-ion – 20 hrs continuous use / 7 days standby
- Audio Range: External mic up to 8 meters (26 ft)
- Memory: 8MB (up to 1 hour buffer)
- USB: Mass storage mode for direct file access
- Size: 5.8 x 5.2 x 2.4 cm
- Charging Time: 2 hours
- External Mic Cable Length: 1 meter (extension options available)
Key Features
Engineered for advanced users who require precision placement of the microphone.
- Detachable External MEMS Microphone
The included 1-meter mic gives you the freedom to place the microphone away from the main device—ideal for room corners, under furniture, or any point of interest. Investigators can capture clearer audio in targeted areas without repositioning the whole unit. - Real-Time Listening via 4G VoLTE
Perfect for surveillance teams needing on-demand access, this model supports live call-in to monitor ongoing conversations. The 4G VoLTE connection ensures clear audio even from remote or moving targets. - Stealth Mode with Voice Activation
Set the device in standby, and it will wait silently until sound is detected. Upon activation, it records and sends alerts to your mobile app, helping you capture only relevant audio while staying off the radar. - Cloud or Private FTP Upload Options
Recordings can be pushed to a secure cloud server or optionally configured to upload to your agency’s own FTP. This flexibility ensures sensitive data is always under your control. - Enhanced Audio Pickup Range
The external mic is engineered to pick up conversations up to 8 meters away with precision, making it ideal for controlled environments where mic placement can be optimized. - Bandwidth-Saving Compression Format
16kbps OGG compression means long-duration operations won’t eat up mobile data or storage—critical for missions where the device needs to stay in place for days.
Requirements
Network:
Requires a nano SIM card with active 4G data plan
Supports same global 4G and 2G bands as Z95G-INT
Power:
Same 1200mAh rechargeable battery and 2-hour charge time
Optional: continuous power via USB for long-term installations
External Microphone:
Supplied with 1-meter external MEMS microphone (micro USB connection)
Extension cable must not exceed 6 meters total length
Secure and conceal mic separately for optimal results
Environment:
Operating temperature: 0°C to 45°C
External mic should be protected from moisture and dust during placement
Device Access:
Same mobile and desktop apps as internal version
USB mass storage mode also supported
Audio Storage & Upload:
Same 8MB internal buffer and OGG audio format
Supports server upload and optional FTP upload to user-controlled destination Important Network Compatibility Note:
This device is optimized for strong 4G performance across all major European bands, making it highly reliable for investigative use within the EU and other regions using similar LTE frequency profiles.
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