... range, computer debugging 3. Soft label: 1.8m 4. Hard tag: 2.4 New Model RF 8.2MHz Stylish EAS System In 2012 ... of digital phase-lock and noise sliding reduction ensures the system high detecting rate.LED grading lights makes the installation easier ... , 168Hz, 178Hz, or 188Hz (optional)Alarm volume90db, 60db, 100db optional New Model RF 8.2MHz Stylish EAS System