1. Alarm Reminder: A variety of locators on the world emerge in endlessly, ordinary people can not identify with the human eye, as long as this anti recording blocker receives the sent by the locator alarm reminder.2. Blocking and Removal: Anti sound recording jammer blocker can quickly lock the locator position and find the removal the devices function.3. Privateness Protecting: Multi scene application can be easily coped with. Anti sound recording blocker lets everyone's privateness be protected.4. Detection Range: Anti recording interceptor accepted frequency range is of 1MHz‑6.5GHz, working time is 25 hours continuously, detection range is 5cm‑10m.5. Intelligent Detector: This anti sound recording interceptor adopts infrared intelligent detection, designed pen size, portable.Specification:Item Type: Anti Recording InterceptorMaterial: PCAccepted Frequency Range: 1MHz-6.5GHzAntenna Gain: -56dbSensitivity: 5 levels adjustableWorking Time: 25 hours continuouslyCharging Power: DC5V 1ABattery: Polymers lithium battery x 1 (300mAh) (shipped with built in battery) Detection Range: 5cm-10mOptical Lens: Special dedicated filterHow to Use:Take out the product and operate according to the instructions.PackageList:1 x Anti Sound Recording Jammer1 x Charging Cable1 x Instruction Manual1 x Red Line1 x Accessory