Feature: 1. MULTIPLE PURPOSE: The device is not only a mobile phone anti recording device, but also a portable power bank, suitable for various business interviews, individual communication, confidential conversations, etc. 2. GOOD PERFORMANCE: Mute ultrasonic interference technology, which can interfere with the language information of any recording equipment and mix high and low frequency audio sources, and is irreversible. 3. REMOTE CONTROL: Comes with wireless remote controller, which can realize remote control of equipment switch, equipment and remote control with batteries, double switch, convenient and practical. 4. WORKING RANGE: The portable recording blocker has a simple structure, which has 3 output directions and 2 levels adjustment, and the maximum anti recording angle is 300 degrees. 5. METAL SHELL: The device adopts aluminum alloy shell, which is wear resistant and corrosion resistant, has good heat dissipation performance, is lightweight and convenient, and has a long service life. Specification: Item Type: Phone Recording Blocker Material: Aluminum Alloy Charging Voltage: 5V 1000mA Output Voltage: 5V 1000mA Standby Current: 14mA Charging Time: 8 hours F1 First Level Current: 500mA F2 Second Level Current: 800mA Shutdown Current: 60uA Anti Recording Sound Pressure: 120db/30cm (maximum) Anti Recording Direction: 300 degrees (maximum) Remote Control Mode: 433 remote control, the longest distance 20 meter / 65.6ft Remote Control Battery: 27A 12V 18mAh alkaline battery x 1 (built in battery) Blocker Battery: 6000mAH 3.7V lithium battery 20180815 x 1 (built in battery). Package List: 1 x Recording Blocker1 x USB Data Cable1 x Remote Control1 x User Manual