Features 1、ULTRASONIC INTERFERENCE: This blocker can perform interference processing on the voice information of any recording equipment, which cannot be recovered after interference processing. 2、3 HOLE EMISSION TERMINAL: Enhances the performance of the device, avoiding low power and resulting in ineffective performance. No impact on human body. 3、LONG BATTERY LIFE: The anti recording blocker has built in battery, the capacity is 4000mAh, and the battery life is about 2 to 4 hours. 4、SIMPLE OPERATION: Press and hold the power button for 2 seconds, the device will turn on (or off), press again to switch gear, easy to operate. 5、WIDE USAGE: The voice recording jammer is suitable for various application scenarios such as company meetings, business interviews, confidential conversations, etc. Specification Item Type: Recording Blocker Material: Plastic, Metal Battery Capacity: 4000mAH, Lithium Battery (Built in) Anti Recording Sound Pressure: 120DB Per 30cm (Maximum) Anti Recording Distance: Anti Recording Linear Distance: 1.5 Meters (Diameter 3 Meters) Anti Recording Direction: 300 Degree (Maximum) Package List 1 x Recording Blocker 1 x USB Cable 1 x User Manual