The product is designed to protect speech information from interception via acoustic and optical channels of information leakage by mobile communications.
The product does not affect the performance of mobile phones in normal modes. The device ensures that acoustic noise interference is turned off when the product cover is opened.
Features:
Capacity up to 10 phones
Your company logo can be applied to the outside of the case
CHARACTERISTICS
Output acoustic signal frequency range, Hz - 180 – 20000