![]() 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. If you wish to record the audio you hear through the GSM Black Box, consider the iPhone / Smartphone Mobile Call Recorder. The option to purchase a genuine Apple USB plug is available from the menu above. To recharge the GSM Black Box, connect the supplied USB cable to the device and the other end to the USB mains plug. We recommend utilising the Black Box's battery management or opting for a mains-powered GSM product for an infinite operational time. When calling the GSM Black Box, this is classed as 'talk time' and will reduce the overall standby time. Standby time = the time the device is switched ON and ready to receive your call (but you are not actively listening). 7 days per charge - that's pretty decent, given the device's small footprint. The GSM Black Box has a standby time of approx. Note: A 4G SIM card is pre-fitted however, if purchasing the optional Sound Detection feature, you must top up the associated SIM card with credit (or any SIM card you use) for this feature to function. This feature is a savvy way to know when someone has entered your room or activity is taking place when you are absent. The microphone monitors audio levels in a heightened state and calls your smartphone whenever noise | sound | conversations are detected. Once enabled, the microphone will monitor the room level and call your smartphone when it detects sound above a standard -50 Db threshold. This optional feature can be enabled/disabled by sending a coded SMS from a smartphone to the Black Box. We only endorse the best audio quality by engineers who know what they are doing and use real 4G modem technology. All our GSM products are a cut above the mustard and professionally built to last without humming, sound distortion or crackles associated with inferior types. In principle, they work, but low prices encourage shoddy workmanship and a poor lifespan. Please be aware of poor-quality imitations. The GSM Black Box is built to support 4G technology to futureproof your product for years ahead. Conversations are easily picked up at distances exceeding 25 feet, depending on the room ambience. You will hear a noticeable difference when listening through a pair of Apple AirPods or other similar brands of earphones. ![]() The audio sound is boosted further with superior clarity if you insert a pair of Apple AirPods. 20-25 feet around the Black Box, without interference like humming, cracking or sound distortion. ![]() There are no distance limitations you may call the Black Box from anywhere globally, and the microphone will pick up conversations and sound from approx. This intelligent little Black Box product is fitted with a GSM SIM card with a sensitive audio microphone that will allow you to dial the associated SIM number from a smartphone (or landline) to clearly listen into the room environment.
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