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This is a compact, portable Black Box equipped with professional GSM audio listening capabilities. You can call the associated SIM card number from a smartphone anywhere in the world to hear the surrounding environment. When used with the Smartphone Call Recorder, it is perfect for general home or office security or for gathering recorded audio evidence.
The Black Box supports 4G networks to ensure your purchase is future-proof. An optional sound detection feature will notify your smartphone when noise or conversations are detected. This is ideal for staying informed when you are not present. The Black Box is powered by an internal rechargeable battery that provides approximately seven days of standby per charge.
Details
GSM Listening Black Box; with Intelligent Audio Monitoring
This clever little GSM Black Box is fitted with a SIM card and an embedded sensitive microphone that allows you to dial the associated SIM number from a smartphone (or landline) to clearly listen to the surrounding room environment. There are no global distance limitations from where you call, and the microphone will pick up conversations and sounds from approx. 20-25 feet around the box, providing excellent audio sound quality.
The audio quality is enhanced if you use a pair of Apple AirPods. You will notice a difference when listening through Apple AirPods or other similar brands of earphones. Conversations can be easily picked up at distances exceeding 25 feet, depending on the room ambience.
4G NETWORK COMPATIBLE
The Black Box supports 4G technology to futureproof your product for years. Be cautious of poor-quality imitations - they may work in principle, but low prices often lead to shoddy workmanship and a short lifespan.
All our GSM products are of superior quality and professionally built to last without the humming, sound distortion, or crackles associated with inferior types. We only endorse the best audio quality crafted by engineers who know what they are doing.
SOUND-ACTIVATED SECURITY FEATURE
This optional feature can be enabled or disabled by sending a coded SMS from a smartphone to the Black Box. Once enabled, the microphone will monitor the room and call your smartphone when it detects sound above a standard -50 Db threshold. The microphone monitors audio levels in a heightened state and calls your smartphone whenever noise, sound, or conversations are detected. This feature is a smart way to know when someone has entered your room or when activity is taking place while you are away.
Note: A 4G SIM card is pre-fitted; however, if you purchase the optional Sound Detection feature, you must top up the associated SIM card with credit for this feature to function. No top-up credit is supplied.
BATTERY-POWERED AND PORTABLE
The GSM Black Box's standby time of approximately 7 days per charge is considered adequate given the device's small footprint. Standby time refers to when the device is switched on and ready to receive your call (not actively listening). When calling the Black Box, this is considered 'talk time' and will reduce the overall standby time. We recommend utilising the Black Box's battery management or opting for a mains-powered GSM product for infinite operational time.
To recharge the GSM Black Box, connect the supplied USB cable to the device and the other end to the USB mains plug. You can also purchase a genuine Apple USB plug from the menu above.
RECORD AUDIO AS EVIDENCE
If you wish to record the audio you hear through the GSM Black Box, consider the iPhone / Smartphone Mobile Call Recorder. This clever device uses Bluetooth to sync with any Bluetooth 3.0 compatible modern smartphone so that a conversation you hear through the Black Box's microphone can be recorded onto the Call Recorder device.
The Call Recorder's primary function is to record both sides of a mobile phone call. It works equally well for the GSM Black Box and can also be body-worn as a portable digital voice recorder.
The iPhone / Smartphone Recorder can be optionally purchased from the menu above.
The GSM Black Box is a high-quality product that provides peace of mind and security to your home, office, workshop, holiday home, or static caravan when you are not present.
More Information
F.A.Q's
HOW SMALL IS THE GSM BLACK BOX?
The GSM Black Box measures just 45 (H) x 30 (W) x 15 (D) mm and is small enough to be placed in a room or vehicle environment to remotely monitor live audio, gather evidence, or ensure the general security of your valuables and property when you are not present.
HOW IS THE DEVICE POWERED?
The Black Box's internal rechargeable battery offers up to 7 days of standby time. Standby time means the device is powered on and ready to receive a call. Each time you call the device, it counts as 'talk time' and reduces the overall standby time. If the sound detection feature is enabled, the standby time decreases further because the microphone uses more battery to monitor the room for sounds above 50 dB.
HOW DO I LISTEN TO MY ROOM ENVIRONMENT?
After fully charging the device, switch it on and place it on a shelf or behind a bookshelf. The device can remain out of sight, but the microphone must be exposed to breathe. You can call the SIM card fitted inside the GSM Black Box anytime, and your call will automatically connect for live audio listening through the device's microphone.
HOW FAR AWAY CAN I HEAR?
You can call the GSM Black Box anywhere worldwide, provided your smartphone has a good GSM signal. You can also use a reliable VOIP number to call the device. When listening to the room environment on your smartphone, the GSM Black Box microphone can pick up audio from about 25 feet away.
The audio quality improves significantly if you use Apple AirPods. You will notice a difference between listening on your smartphone and through Apple AirPods. Conversations can be picked up at distances exceeding 25 feet, depending on the room ambience. Other brand earphones may work just as well.
WHAT DOES IT MEAN TO HAVE 4G?
4G and above are new standards in GSM technology, supporting many more countries to futureproof the product for years to come.
WILL I HEAR CRACKING BACKGROUND SOUND WHEN LISTENING?
No. Unlike inferior products, our GSM Black Box is professionally hand-built by engineers who understand their work. This ensures a solid, reliable, safety-tested product with excellent audio quality.
WHAT IS SOUND DETECTION?
This optional feature can be enabled or disabled by sending a coded SMS command from a smartphone. When enabled, the Black Box's microphone will actively monitor the room for sounds above a typical 50 dB level and send an SMS notification to your smartphone alerting you that noise has been detected. This feature is ideal for being notified should a person/s enter your premises when you are not there.
Please note that enabling the sound detection feature will consume approximately 50% more battery performance due to the microphone constantly monitoring audio levels. This will reduce the 7-day standby time to approx. 3.5 days.
CAN I RECORD THE AUDIO?
We offer an optional iPhone / Smartphone Call Recorder product that syncs with any modern Bluetooth 3.0 compatible smartphone so the conversation you hear through the Black Box's microphone can be recorded onto the Call Recorder device. The Call Recorder's primary function is designed to record both sides of a mobile phone call and works equally well for the GSM Black Box.
For further details on the Call Recorder product, navigate to the Smartphone Call Recorder found at Audio Surveillance -> Call Recording. It can be optionally purchased from the menu above.
Technical Info
GSM Audio Black Box with remote live listening
4G compatibility for worldwide use
Small and portable
Professionally hand-built in the UK
Call the GSM Black Box from a smartphone globally
No crackling, fuzzing or main feedback associated with inferior products
If your order is received by 12:00 noon (Monday through Friday), your parcel will be despatched the same day. If your order is received after 12:00 noon, your parcel will be dispatched the following day.
If your order is received after 12:00 noon on Friday or anytime on a Saturday or Sunday, your parcel is despatched the following Monday.
FREE 2-3 DAY DELIVERY
We offer a FREE 2-3 day delivery service by Royal Mail Tracked 48 Signature and Evri Tracked Signature.
NEXT DAY DELIVERY
We offer an expedited delivery service (Monday through Friday) by Royal Mail Tracked 24 Signature and DPD Courier at their respective shipping costs.
Note: If you choose DPD for next-day delivery, your order must be received by 10:00 am to allow time for booking a collection.
SATURDAY DELIVERY
We offer Saturday delivery by Royal Mail Special and DPD Courier, provided your order is received no later than 12 noon on Friday. If your order is received after 12:00 noon on Friday, we cannot despatch for Saturday delivery.
Your parcel will be couriered and fully trackable by UPS or FedEx for orders despatched to EU countries and other worldwide destinations. If you have a specific preference of courier please let us know before placing an order.
STANDARD SHIPPING
Your parcel is despatched with an estimated delivery time of 4-6 working days and a flat shipping fee of £39.00.
EXPEDITED SHIPPING
Your parcel is despatched with an estimated delivery time of 3-5 days and a flat shipping fee of £49.00.
Deliveries to the EU and other worldwide destinations are not guaranteed within the stated timescales. Customs and Excise in the receiving country may subject your parcel to charges outside our control.
Sometimes, the delivery destination can exceed the flat-rate shipping fee. We try to absorb additional shipping fees; however, in a minority of cases, this may not be possible due to our small margins, and we may need to touch base with you before dispatch to discuss further options.