The voice recording jamming device SA-AJ02 is designed to protect conversation areas from eavesdropping. This device blocks wireless microphones, tape recorders, hard-wired microphones and most professional digital voice recorders including recorders installed in mobile phones (smart phones). Ultrasonic inaudible noise signal, as well as acoustic speech-like noise signal, are used in jamming the eavesdropping devices.

• Ultrasonic exposure + voice imitation = 80% shielding
• 2 ultrasonic transducers and powerful speaker
• Absolutely soundless operation possible
• Suppression range up to 0.5-1.5 meters
• Very powerful emission up to 85dB
• Detailed English manual included
• Small size and light weight, easy to carry

1. The jammer needs no special maintenance.
2. Do not use chemical solvents or prevent water from entering into the device when cleaning its surface.
3. When not in use, the device must be placed in dry and ventilated places, to avoid its contact with salty mist and noxious gases.
4. The warranty period is one year. It is repaired free of charge for three years and maintained for life, only requiring buyer to bear the shipping cost.

• Portable Audio Jammer Host x 1pcs
• Power Supply x 1pcs
• Case Pack x 1pcs
• 3 ports USB charging cable x 1pcs