WiFi Listening Bug and Recorder
Product Code W4BRMade by Spy Equipment UK – Introducing a compact “black box” audio surveillance solution designed for long-term voice recording. Equipped with Wi-Fi connectivity, this powerful device delivers remote configuration, sound-activated alerts, and direct wireless file downloads to your smartphone app.
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£3.00 - UK Standard (Up To 3 Working Days)£6 - UK Standard (Up To 3 Working Days)
£8.00 - UK Special Delivery (Next Working Day - before 13.00 hours)
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£28.00 - Europe Zone (1 to 2 working days )Europe Zone 2 ( Express )
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£50 - Worldwide Zone 1 ( 2 - 4 working days )Worldwide Zone 2
£64 - Worldwide Zone 2 ( 3 - 5 working days )USA & Canada
£37.00 - USA & Canada ( 1 - 3 working days )W4BR
£234.00 Inc VAT£195.00 Ex VAT
Requested time and time again by our customers, our all-new WiFi Black Box Audio Recorder combines a high-quality voice-activated recorder with Wi-Fi connectivity for wireless file downloading, instant alerts, and total app control.
Compact, Simple and Powerful Audio Recorder
You love our discreet “black box” surveillance tools and audio and WiFi recording devices for their proven reliability, such as our popular GSM Enduro Live Listening Device and the GSM Black Box Listening Bug.
Now we’ve created the ultimate Wi-Fi-enabled recording solution within the same familiar, ultra-compact enclosure.
Deployment is effortless – a single slide switch powers the unit on. Its small profile ensures it stays hidden, and you can select optional high-strength magnets at checkout for quick attachment to metal furniture, cabinets, or frames.
Smartphone Control – No Ongoing Connection Charges
Unlike traditional mobile recorders that depend on cellular networks and costly SIM card subscriptions, this unit uses existing local 2.4GHz Wi-Fi networks.
This enables seamless remote management and wireless audio retrieval without incurring running costs. This key feature makes it one of our top hidden audio recorders.
Managing the wifi black box audio recorder is straightforward using our free smartphone app, available for iOS and Android devices.
The app allows you to customize activation sensitivity, toggle notifications, delete recorded files, or format storage from anywhere in the world. Optional cloud storage is also available.
Voice Activated Recording – Real-Time Alert Notifications
This advanced recorder offers flexible capture modes: set it to log continuously or trigger automatically when sound is detected.
For sound-activated mode, choose file recording durations of 1, 5, 10, or 30 minutes per event directly inside the mobile app.
Receive instant phone notifications whenever sound is detected so you know exactly when room activity occurs.
Alerts can be toggled off at any time, and all saved audio files can be downloaded remotely to your phone wirelessly over Wi-Fi.
Superb Audio Quality – Excellent Battery Life
At Spy Equipment UK, sound quality is essential. Despite its compact footprint, the high-gain internal microphone captures crisp speech up to 8 metres away in quiet environments.
The internal 32GB memory holds up to 20 days of onboard audio storage, with loop-recording capabilities to overwrite older files when full.
Powered by a internal rechargeable lithium battery, the wifi black box audio recorder delivers up to 40 days standby time or up to 14 hours of continuous recording.
For permanent deployments, connect the unit to a USB mains supply using the included lead. A full battery recharge takes approximately 5 hours.
The unit features two power-saving standby modes: Mode A provides high responsiveness with up to 28 days battery life. Mode B offers maximum energy conservation, providing up to 40 days standby based on 2-3 daily sound activations.
Versatile Deployment for Home or Office
Versatility is key with the WiFi Black Box Audio Recorder. It can be positioned anywhere connectable 2.4GHz Wi-Fi is present, such as homes, offices, warehouses, or commercial premises.
Provided you deploy the device for lawful purposes, the situations that suit using a voice recording device are endless.
To learn more about this impressive wifi black box audio recorder, contact our team of surveillance experts today.
How do I access and listen to my recorded audio files?
You can stream or download recorded audio files directly to your smartphone via the app. Alternatively, connect the device to a computer using the supplied USB lead to offload files.
Will any lights or indicators show while the device is active?
No. The wifi black box audio recorder operates in complete stealth, with zero giveaway lights, LEDs, or sound alerts during active recording.
Can I connect the device permanently to mains power?
Yes. The unit can remain plugged into a standard mains USB charger or power bank using the supplied USB cable for continuous, uninterrupted operation.
What happens if the wifi black box audio recorder loses its Wi-Fi connection?
If Wi-Fi drops out, the device will continue detecting sound and logging voice-activated recordings directly to its internal 32GB memory card. Files can be accessed via the app once Wi-Fi reconnects.
What is the benefit of adding the optional magnetic mount?
Selecting the magnetic option adds strong internal magnets, allowing you to instantly attach the recorder to metal framework, underside of desks, filing cabinets, or structural beams.
Does this device require a SIM card or subscription fee?
No. The wifi black box audio recorder operates on existing local 2.4GHz Wi-Fi networks, eliminating the need for SIM cards, mobile data plans, or monthly fees.
How do I switch between continuous recording and voice activation?
Recording modes can be toggled instantly inside the smartphone app settings, allowing you to switch between continuous capture and sound-activated recording remotely.
Can I manage multiple black box recorders from a single phone?
Yes. You can add and uniquely name multiple Wi-Fi recording devices within the smartphone app, allowing centralized monitoring from one account login.
- You will need to have access to a smartphone (Android or iPhone) to be able to use/control this product
- The product is controlled via an app that will need to be downloaded and installed onto your smartphone
- The WiFi Listening and Recording Bug needs an accessible WiFi connection to work in the environment in which it is deployed
- Some basic technical understanding of connecting to a WiFi network is needed
- Ultra-compact enclosure allows effortless concealment in homes, offices, vehicles, or commercial premises.
- Captures clear speech within an 8-metre microphone pickup radius in quiet room environments.
- Triggers recording automatically when sound is detected, with adjustable file durations (1, 5, 10, or 30 minutes).
- Option to set continuous recording for up to 14 hours of non-stop audio capture on a single charge.
- Sends real-time app notifications to your smartphone the moment sound triggers a new recording event.
- Stream and download recorded audio files directly to your smartphone over the local Wi-Fi network.
- Remotely change sensitivity settings, manage storage, and format memory globally via the smartphone app.
- Holds up to 20 days of total audio storage without needing external memory cards.
- Overwrites older audio files automatically when internal memory reaches capacity to ensure ongoing capture.
- Operates via internal battery or continuously when connected to a mains USB power source.
- Features Power Mode A (up to 28 days standby) and Power Mode B (up to 40 days standby) for long deployments.
- Choice to add powerful magnets at checkout for instant mounting to metal surfaces, joists, or cabinets.
- Utilises existing 2.4GHz Wi-Fi networks without requiring SIM cards or monthly data plans.
- Wireless Protocol: Wi-Fi (IEEE 802.11b/g/n)
- Operating Frequency: 2.4 GHz
- Bluetooth Connectivity: Initial setup and pairing only
- Audio File Size: Approx. 1 MB per minute
- Microphone Pickup Radius: Up to 8 metres (approx. 26 ft) in quiet conditions
- Internal Memory Capacity: 32 GB flash memory (non-expandable)
- Audio Storage Capacity: Up to 20 days total storage (based on typical usage)
- Battery Type: Internal Rechargeable Lithium Polymer (1200 mAh capacity)
- Charging Current / Time: 200 mA / Approx. 5 hours full charge
- Continuous Recording Power Draw: 80 mA
- Continuous Recording Battery Life: Up to 14 hours continuous use
- Power Saving Mode A Standby: Up to 28 days (based on 2-3 daily activations)
- Power Saving Mode B Standby: Up to 40 days (based on 2-3 daily activations)
- Standard Dimensions (L × W × H): 66 mm (73 mm including switch) × 30 mm × 19 mm
- Dimensions with Magnets (L × W × H): 66 mm (73 mm including switch) × 30 mm × 24 mm
- WiFi Black Box Audio Recorder Unit
- Magnetic USB Charging Cable
- 3-PIN UK USB Mains Charger Plug
- Reset Magnet
- Free downloadable Smartphone App
- Full instructional guide
- Phone and Email Support if Required








