Specifications/Special Features:

• Interrupts mobile phone signal
• Interrupts bug detector
• Interrupts car tracker
• Interrupts mobile controlled bomb
• Interrupts gaming racketeer
• Interrupts electronic examination fraud
• EST-2603 looks like a business card, thin, light, and small
• Built-in battery and easy to carry
• More than 10 kinds of uses:

Used in the area of prohibiting using mobile telephone, like health and safety site (hospitals, gas stations), seeing and hearing site (cinemas, musical performance, museums), and ensure public security and intimacy site (prisons, examination rooms, courts, schools, and conference rooms)