The device has the appearance of a Bluetooth speaker and has good concealment. The device can block the recording of the phone and the recorder in the case of complete non-sensitivity, so that the recorded sound is noise, you can not hear the real conversation and the audio file can not be restored.

The use of ultrasonic mixing technology combined with professional structural design, so that the mobile phone recording function can not admit the conversation content, and recording can not be processed and restored, from the source to protect the conversation content from being leaked.

The product has the appearance of a Bluetooth speaker, which is not easy to be detected by the speaker when the device is started. Self-developed ultrasonic mixing technology ensures good recording shielding effect and can effectively protect the conversation content.

Compatible with all kinds of mobile phones and recorders: effectively block the recording function of Apple, Huawei, OPPO, Samsung, Xiaomi and other brands of mobile phones and various recorders.

Non-inductive: Noise is only picked up by recording devices and is barely detectable by the human ear, providing a non-inductive and imperceptible experience compared to other anti-recording technologies that use loud noise suppression.

Harmless: It is the first in the industry to adopt acoustic interference, which is different from the electromagnetic interference used by traditional recording interference equipment, and avoids the electromagnetic radiation generated by recording shielding equipment on the human body.

lossless: Pickup in the normal range of sound for a microphone device, not functional impairment.

easy to disguise: common Bluetooth speaker appearance, can be placed arbitrarily.

Simple operation: one key operation, can be controlled by remote control.

Easy to move: built-in 5Ah capacity battery, long life.

sound compared with other anti-recording device without buzzing noise, can quietly guard the conversation environment is not easy to be noticed.