F12 bug, voice recorder and phone jammer
The F12 audio recorder jammer from the Spreest brand is a portable device designed to protect confidential conversations from unauthorized recording by phones, dictaphones, and other sound recording devices.
The F12 model uses special acoustic signals that mask speech and make it difficult to record a clear recording. The device provides 360° protection, and each of the four sides operates independently, allowing activation of emission from selected directions or simultaneous protection of the entire environment.
NOTE! The device does not work with all dictaphones/phones. For example, it effectively jams Android mobile phones and some iPhone models.
Key features
1. Electromagnetic interference-free technology – Operates by masking speech signals with acoustic waves, without blocking cell phone, Wi-Fi, or other radio transmissions.
2. 360° protection – Four independent emission directions provide protection up to 8 m around the device.
3. Four independent operating directions – Each of the four sides of the device has a separate switch, so you can activate interference emission from 1, 2, 3, or all 4 sides – depending on your needs.
4. Efficient 9800 mAh battery – The large capacity battery provides up to 4 hours of operation on a single charge. The jammer can also operate when connected to a charger.
5. Simple and intuitive operation – Just position the device, point the active sides towards the protected area, and flick the selected switches to start operation.
6. Battery charge indicator – Built-in lights allow you to quickly check the battery level after starting the device.
7. Mobile, robust design – Durable ABS housing and compact dimensions make the device perfect for conference rooms, offices, private offices, and meetings requiring confidentiality.
Full 360° protection
The F12 audio jammer emits acoustic interference in a 360° range, protecting the space around the device.
Each of the four sides of the device operates independently and has its own switch, so you can activate interference emission from one, several, or all directions simultaneously.
This allows you to adjust the operating area to the room layout and protect only the selected zone.
Application
The device is ideal for:
- Offices and conference rooms – Helps protect confidential business conversations from unauthorized recording.
- Private offices and law firms – Supports privacy when discussing important documents, legal matters, or client data.
- Business meetings and negotiations – Makes it difficult to record conversations using phones, dictaphones, and other recording devices.
- Home and private rooms – Provides additional protection during conversations requiring discretion.
- Business trips – Compact design allows you to take the device with you and use it in hotels, rented apartments, or temporary workplaces.
Technical specifications
- Housing material: ABS
- Operating range: 8 m
- Operating angle: 360°
- Type of interfered devices: Mobile phones, audio recording devices, and other sound recording devices*
- Battery capacity: 9800 mAh (12.6 V)
- Charging time: Approximately 2 hours
- Operating time: Up to 4 hours
- Output voltage: 15 V / 5 A
- Charging voltage: 15 V / 5 A
- Power: 20 W
- Dimensions: 130 × 102 × 254 mm
- Weight: 1048 g
*NOTE! There is no guarantee that the jammer will work effectively with every device. Before use, we recommend testing it with the phones/dictaphones you own.
Set includes
- 1x F12 audio recorder jammer
- 1x Charger
- 1x User manual
