Protection against eavesdropping and recording of mobile phone surroundings - PHONE SAFE SUMMIT

PHONE SAFE SUMMIT is a specialized device designed to provide protection against mobile phone eavesdropping and unwanted recording of conversations through a smartphone’s microphones. A modern smartphone can capture audio not only during a regular phone call, but also through applications, a voice recorder, or malicious software with access to the microphone. For this reason, simply restricting the mobile network, Wi-Fi, or Bluetooth may not prevent audio from being recorded locally and stored in the phone’s memory. PHONE SAFE SUMMIT addresses this problem by acting directly on the phone’s acoustic channel. Once the smartphone is placed inside the device, it generates ultrasonic interference around its microphones, making it significantly more difficult to obtain an intelligible recording of surrounding conversations. The interference acts from both sides and is designed to affect both the upper and lower microphones of the phone. The device is particularly suitable for offices, meeting rooms, conference rooms, and other environments where sensitive or confidential information is discussed. The phone remains online, allowing the user to monitor its display and receive incoming calls. The device can accommodate up to four phones with a maximum height of 180 mm. During active interference, PHONE SAFE SUMMIT is not completely silent. Although its protection principle uses ultrasonic interference, the device also produces a slight audible noise during operation, which may be noticeable in a quiet environment.

Main advantages of PHONE SAFE SUMMIT

• Protection against conversations being recorded by a phone microphone
• Ultrasonic interference targeting smartphone microphones
• Two-sided effect on both upper and lower microphones
• Capacity for up to 4 phones
• The phone remains online
• Does not interfere with mobile networks, Wi-Fi, or Bluetooth
• Automatic activation using sensors
• Built-in 6800 mAh rechargeable battery
• Battery life of more than 10 hours
• Power supply and charging via USB-C
• Compatible with phones up to 180 mm in height
• Natural wood construction

Protection of phone microphones using ultrasonic interference

The basic operating principle of the device is to generate interference around the microphones of the inserted smartphone. Its purpose is to reduce the microphone’s ability to clearly capture conversations and other surrounding sounds. The interference acts from both sides to cover the upper and lower areas of the phone, where microphones are commonly located on modern smartphones.

This type of protection is also relevant when the phone is not connected to a mobile network or the internet. Audio can still be recorded locally and stored in the device’s memory for later processing or transmission.

The protective signal uses ultrasonic interference; however, the operation of the device itself is not completely silent. Once activated, PHONE SAFE SUMMIT may produce a slight audible noise. This should be taken into consideration, particularly when the device is used in very quiet rooms.

Protection without blocking mobile networks, Wi-Fi, or Bluetooth

PHONE SAFE SUMMIT does not operate like a conventional RF mobile signal jammer. Its purpose is not to block GSM, LTE, 5G, Wi-Fi, or Bluetooth, but rather to affect the ability of the phone’s microphones to record surrounding sounds.

The phone can therefore remain connected to the mobile network and the internet during use, while incoming calls and notifications can still be monitored on its display. This means that the user does not have to switch off the phone or leave it outside the meeting room.

This type of protection is particularly suitable for situations where you need to keep your smartphone nearby while reducing the risk of sensitive conversations being recorded through its microphones.

Automatic activation using intelligent sensors

The device is equipped with IN USE and ACTIVE sensors, which help control its operation and conserve the energy of the built-in battery. The system can respond to the insertion of a phone and activate the protective function according to the device’s operating mode.

Automated control means that the device does not have to operate continuously at maximum power. Power consumption is approximately 6 mA in standby mode and approximately 500 mA during active interference.

The BATT, ACTIVE, and IN USE indicators allow the user to monitor the battery status and current operating mode.

Built-in battery and space for up to four phones

PHONE SAFE SUMMIT is equipped with a built-in 6800 mAh Li-Ion battery, providing more than 10 hours of operation. The device can also be powered via a 5 V USB power source and features a modern USB-C connector for charging.

The internal space can accommodate up to 4 mobile phones with a maximum height of 180 mm. This makes the device suitable for business meetings involving several participants where it is necessary to reduce the risk of conversations being recorded by smartphones present in the room.

The natural wood construction also resembles an elegant desktop stand, allowing the device to blend naturally into an office or conference table environment.

Technical specifications

• Model: PHONE SAFE SUMMIT
• Protection type: ultrasonic interference targeting mobile phone microphones
• Operating noise: a slight audible noise may be noticeable during active interference
• Interference power: < 2 W in the active area
• Capacity: up to 4 phones
• Maximum phone height: 180 mm
• Power supply: USB 5 V / built-in rechargeable battery
• Power consumption in active mode: 500 mA
• Power consumption in standby mode: 6 mA
• Battery: Li-Ion
• Battery voltage: 3.7 V
• Battery capacity: 6800 mAh
• Battery life: more than 10 hours
• Charging time: approximately 12 hours
• Charging connector: USB-C
• Sensors: IN USE, ACTIVE
• Indicators: BATT, ACTIVE, IN USE
• Dimensions: 262 × 78 × 82 mm
• Weight: 600 g
• Material / finish: natural wood
• RF interference: no – the device does not block mobile networks, Wi-Fi, or Bluetooth

Package contents

1 × PHONE SAFE SUMMIT

1 × USB-C charging cable

1 × User manual

Recommended accessories

For convenient long-term use, we recommend a suitable 5 V USB power adapter, allowing PHONE SAFE SUMMIT to be powered directly from the mains. For mobile use where access to a power outlet is unavailable, an external power bank can also be a practical accessory for extending the available operating time.

PHONE SAFE SUMMIT is designed for users, businesses, and organizations seeking to increase the protection of confidential conversations in areas where mobile phones are present. It combines ultrasonic microphone interference, two-sided operation, automatic sensors, capacity for up to four phones, and more than 10 hours of battery life. The phones remain online and accessible during use. However, it is important to take into account that during active interference, the device may produce a slight audible noise.