The SEL DUALDOCK redefines secure conversations by blocking microphones while keeping you online. This is a desktop ultrasonic audio jammer safe with 2 slots, featuring efficient jamming, simple operation and flexible deployment. By adopting our advanced ultrasonic mixing technology, it effectively prevents illegal eavesdropping via smartphones and recording apps. The device only acoustically jams the microphone, without affecting the phone’s call, network or SMS. It ingeniously resolves the dual dilemma in high-end scenarios of “strictly preventing recording leaks while keeping communications online”.
The jammer comes in a flip-cover lightweight structure with a built-in large-capacity battery, allowing immediate use without fixed installation. Its black edge design also effectively blocks cameras, eliminating the risk of surreptitious filming from the source. The SEL DUALDOCK is the ideal audio jammer for high-sensitivity scenarios such as business negotiations, confidential meetings, and legal communications.
Ultrasonic Jammer SEL DUALDOCK operates by emitting high-frequency sound waves to deceive the microphone, typically
above the range of human hearing (20 kHz+). The microphone can only receive the harmonic ultrasonic
signal generated by the jammer, and cannot pick up the normal voice signal. The recorded audio only plays
noise, and cannot be analyzed using technical means (the noise completely covers the speech).
Features
100% Jamming Effectiveness
It is compatible with all Android phones and iPhones. Inside the safe, it achieves 100% jamming effectiveness.
Easy Operation
Simply place the phone in, and it automatically senses and activates ultrasonic interference.
Safe & Silent
Advanced ultrasonic mixing technology effectively blocks recording silently without any audible noise.
Multi-Device Protection
Supports simultaneous jamming for 2 cellphones, ensuring highefficiency shielding.
Long Battery Life
It can work continuously for 8 hours, meeting the needs of long-duration shielding requirements.
Connectivity Unaffected
Only blocks the phone’s microphone and camera, without affecting normal incoming calls, network or SMS.
Application
The SEL DUALDOCK ultrasonic jammer safe is suitable for all scenarios where you want to block cellphone positive recording or passive recording through eavesdropping apps. It is typically suitable for Government Officers, Politicians, High-End Company Leaders, VIPs, etc.
High-End Business Negotiations
Ensuring trade secrets and pricing strategies are not “accidentally” recorded by the other party’s phone.
Legal & Lawyer Communications
Protecting client privacy and ensuring absolute confidentiality of case details.
Executive Offices
An essential desktop configuration for leaders when talking with subordinates/receiving important visitors.
Private Clubs
Providing an instant information security haven for VIPs in informal settings.
| Technical Characteristics | |
| Jamming Method | Ultrasonic Mixing Technology |
| Jamming Range | 100% Effective within the safe |
| Capacity | 2 Slots |
| Power Supply | DC 12 V 3 A (Type C) Adapter & Battery |
| Charging Time | ≤ 2.5 Hours |
| Battery Working Period | Up to 8 Hours |
| Built-in Li Battery | 13000mah, 14.4V |
| Battery | Li-Ion, 3.2 V, 6800 mAh |
| Indicators | White (Battery) Blue (Jamming) Green (Power) |
| Working Temperature | -20 ~ 45 ℃ |
| Weight | 1.3 Kg |
| Slot Dimension | 173 x 86 mm |
| Outer Dimension | 249.5 x 199.5 x 47 mm |
| Packing Box Size | 390 x 270 x 105 mm |
| SUPPPLIED SET | SEL DUALDOCK device USB Type C cable Charger |
