SIM card listening module PLUS (B)

The SIM card listening module PLUS (B) is a compact and powerful listening solution with a high-quality internal microphone and impressive battery life. This type hidden listening module is ideal for those who want to listen in quickly and discreetly without complicated settings or loose microphone cables. Thanks to the built-in sound detection, automatic call notifications and easy operation, this listening device suitable for temporary surveillance or periodic monitoring in the home, vehicle or office (always use in accordance with privacy legislation).

Operation via the mobile voice network

The SIM card listener module essentially works like a modified mobile phone. You insert a SIM card with call minutes (no data required), charge the device, and call the number on the SIM card. The call is automatically answered without an audible click, and the microphone is immediately activated. You listen live via the mobile network (2G/3G/4G, depending on provider and coverage). So no app or internet connection is required—just a voice connection, just like with a regular mobile phone.

Discreet listening with long battery life

With a standby time of up to approximately 9 days and an active listening time of approximately 5 hours, this SIM card listening module More runtime than standard models without being bulkier. Its quiet design and internal microphone allow you to easily place the module in virtually any room, while delivering clear audio over the mobile network.

Main features of the SIM card listening module PLUS (B):

– Compact design with high-quality internal microphone
– Up to 9 days standby and approximately 5 hours of active listening
– Sound detection with automatic bell notification
– No audible click or indication upon activation
– Plug & Play: simply insert the SIM card and switch on
– Includes 3M tape for quick, discreet mounting

Use with battery, power bank or mains power

The built-in rechargeable battery provides approximately 9 days of standby time and approximately 5 hours of active use. For longer use, you can connect the listening module to a power bank or AC adapter. The device remains usable while charging. We do not recommend continuous charging to prevent battery wear, but temporary top-ups have no negative effect. When using the module regularly, occasionally run it fully on the internal battery to maintain its health.

Sound detection for automatic notifications

The listening module can automatically call a specified number when sound is detected. You can enable or disable this feature via SMS, depending on your preferred application. This way, you only receive notifications when there's actual activity—ideal for situations where you want to be notified immediately of sound or motion.

Optional recording via telephone recorder

Want to record while listening? Use the optional Sitcon phone recorder (SKU 7004). This allows you to record audio directly from your phone and listen back to it later or save it for analysis.

Package contents:

– SIM card listening module PLUS (B)
– Adapter with charging cable
– 3M mounting tape
- Manual

Important

This device is not waterproof and is intended for use only in dry, indoor areas. Always use the product in accordance with applicable privacy laws.

Buy a SIM card listening module at Sitcon

Since 2007, Sitcon has specialized in observation and monitoring equipment for both private and professional use. All our products are extensively tested by our technical department for reliability and performance. Visit our stores in the Netherlands and Belgium for personalized advice or a demonstration, or order easily online with fast and discreet delivery.

Frequently asked questions about the SIM card listening module PLUS (B)