1、Sound Switching Technology: This bug detector adopts sound switching technology, intelligently detecting sound source or not, when no sound source is detected for a long time, the machine will automatically standby, and when there is a sound, the machine will turn on immediately. Satisfy the long time power on, prolong the life of the equipment. 2、Triple Switches: This anti recording camera detector has triple switches, manual switch, voice activated switch, remote control switch, modulating the interference unit with specified power, the remote control can realize 1‑30 meters. 3、27 Transmitting Heads: This concealed camera detector has 27 transmitting heads that allow the interference unit to be mounted under a desktop, emitting ultrasonic waves on three sides and jamming at 270 degrees with multiple holes on one side. 4、Multifunctional: This anti recording camera detector is multifunctional and can be used for shielding against cell phone recordings, against voice recorder recordings, and against video recordings. 5、Wide Application: This anti recording detector is widely used for confidential company meetings, conversations, business interviews, individual communicating talks, important lectures training classroom, ultrasonic interference technology, anti recording in the invisible. Item Type: Concealed Camera Detector Interference Distance: Approx. 2-6m / 6.56-19.69ft Interference Angle: 270 Degrees Operation Mode: Manual, Remote Control, Voice Control Battery Life: 3 Hours Interference Device Types: Mobile Phones, Voice Recorders, Video Recording Devices, etc. Battery Type: Built In 2600mAh Lithium Ion Battery for Detector (Included), Built In 350mAh Lithium Battery for Remote Control (Included) 1 x Concealed Camera Detector 1 x Power Plug 1 x Remote Control 1 x Manual