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    Product Description 1. IntroductionEST-007MINI-F Portable ultrasonic audio jammer is an information security product with completely independent intellectual property right. It can exactly block the voice recording device like cellphone, recording pen, audio and etc. in about 0.5-1.5 meters. When it finds the signals, it will directly isolate it. 2. Technology Shielding Objects Voice recording device as Cell Phone, Recording Pen, Audio, Hidden Microphone and etc. Shielding Radius 0.5-1.5 meter Shielding Angle Horizontal 90°/ Vertical 90° Battery Inside 2000 mAh / 12V Product Weight 0.6 KG Product Size 145*85*45mm Power Supply Battery Inside / AC Adaptor Working Current 0.25A Interception Mode Acoustic Interference Interception Strength 85dB Working Time 8 hours Working Temperature -30℃~40℃ Shell Material Metal  3. Features • Ultrasonic exposure + voice imitation = 100% shielding• 4 ultrasonic transducers and powerful speaker• Absolutely soundless operation possible• Suppression range up to 1-3 meters• Very powerful emission up to 85dB• Detailed English manual included 4. Maintenance1. 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 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 need buyer bear the shipping cost it has. 5. Application Place1.Meeting room, party and government organizations, enterprises and small medium and large conference rooms, concert halls, and etc.2. At places where using recording device is prohibited such as government, military, finance, security, police and command center etc. 6. Warranty: one year from delivery date7. Packing Details:1pc x Portable Audio Jammer Host1pc x Power Supply1pc x Case Pack

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