The Stealth SM2020 Portable Audio Jammer and Speech Protection System The Stealth SM2020 is the most advanced portable audio jammer and speech protection system which protects you against listening and known recording devices. The Stealth SM2020 creates sound barrier interference which masks your speech and any sound to be extremely difficult or impossible to extract the original content from the noise. When it is used in the correct manner, The Stealth SM2020 will protect you from; · Voice recorders(tape and digital) · Microphones, wireless microphones · Stethoscopes, laser listening device · GSM/Buletooth/Wi-Fi transmitters, etc. Main Functions 1. Sound Masking (Audio Jamming) The 2 channel chaotic noise ( Distortion + Reverberation) in a random sequence secures your privacy and information from recent hi-tech speech extraction software. · Main Speaker: 500 mW This built-in speaker creates sound barrier interference against listening and recording nearby its location. · Sub-Transducer: 700 mW x 2 This 2 special transducers (TRN600S) can be installed on window, wall, partition, ceiling and hard floor and create chaotic noise with random vibration depending on the output of noise to protect your speech from eavesdropping and listening. 2. RF Detector: 70 MHz ~ 3000 MHz The Stealth SM2020 has built-in RF detector to detect any active wireless microphone or covert camera and warns with a beep sound or LED. · Detection distance: up to 3 M (10 feet) · Sensitivity control capability Features · Protects against all known methods of listening devices - All types of radio microphones, stethoscopes, voice recorders, passive resonators and wired microphones, etc. · Portable Design – it can be easily prepared for use. · Provides a much higher level of protection than a white-noise generator. · The system can be used in any situation. · The StealthSM2020 built-in RF detector gives an additional protection against nearby radio microphones and RF transmitters. · Absolutely harmless – no microwave reflections or ultrahigh sound noise. Specification · Type of Noise: 2 Channel Chaotic Noise ( Distortion + Reverberation) · Output (Electronic volume control) Built in Speaker – Max. 500 mW Transducer – Max. 700 mW X 2 with Random Vibration · RF Detector Frequency Range 70 MHz ~ 3000 MHz · RF Detection distance Up to 3 meters · Power Source 100 V ~ 240 V AC, Car Cigar Jack: 12 V ~ 28 V DC · Dimensions (without antennas) 110 W x 135 L x48 H (mm) See youtube video below: https://youtu.be/5I0uRVCgRIA Please see my 100% feedback. Please ask questions about item prior to bidding. Ask additional questions before end of auction. All questions answered promptly. Payment due within two days of auctions end via PayPal. No extension on payment times. I only accept PayPal. I will only ship to PayPal verified addresses. No overseas shipments. I always recommend that winning bidder purchase shipping insurance. Shipping calculated on actual shipping cost based on E-Bay shipping calculator. I take great care in packaging all fragile items! I always ship same day or the next business day after receiving your payment. I want you to be happy with your purchase, please let me know how I can be of assistance. I guarantee item to be exactly as described in item description. Absolutely no returns on TSCM electronics! All sales are final on TSCM electronics due to the nature of their use. By purchasing this item you agree to these terms.