Portable Anti Recording Blocker Microphone Suppressor Device Audio Voice Recording Jammer Item Type: Anti Phone Recording Interceptor Material: ABS Interception Effect: More Than 99% (Silent) Interception Distance: 2-3 Meters Interception Angle: 360 Degrees Distance Adjustment: Stepless adjustment Opening Mode: Manual, Remote Control Remote Control Battery: 27A 12V 18mAh Alkaline Battery x 1 (Shipped With Built In Battery) Interceptor Battery Capacity: 6000mAH 3.6V Lithium Sub Column 18505 x 1 (Shipped With Built In Battery) Battery Life: 3-4 Hours Interference With The Type Of Equipment: Cell Phones, Recording Devices, Video Recording And Other Sound Capturing Devices Size: Approx. 15.3 x 7 x 2cm / 6.0 x 2.8 x 0.8in(L x W x H) Charging Time: About 2 Hours Full Charging Voltage And Current: 5V 2A Ambient Temperature: -20 ℃ -45 ℃ Relative Humidity: 35-85%