Compact Recording Blocker with 6000mAH Power Bank - 15m² Protection Range & 1-20M Remote Control
This dual-function device combines advanced audio protection technology with portable charging capabilities, ensuring confidential conversations remain secure while providing backup power for mobile devices.
The WSD-L7C emits ultrasound waves containing random noise that are inaudible to humans but effectively interfere with digital recording devices. This technology captures random noise alongside normal speech, rendering recorded audio unusable while maintaining normal conversation quality.
- Dual Function Design: Combines anti-recording protection with 6000mAH portable power bank
- Wireless Remote Control: 1-20 meter remote operation range for convenient device management
- Advanced Interference Algorithm: FPGA-based ultrasonic noise technology provides superior protection against digital recording
- Wide Coverage Area: 15 square meter protection range with 180° interference angle
- Comprehensive Device Compatibility: Tested with iPhone, Huawei, Xiaomi, Samsung, Sony, Olympus and other major brands
- Silent Operation: No audible buzzing or noise disruption to human hearing
Ideal for confidential meeting rooms, legal proceedings, negotiation spaces, corporate offices, government facilities, and any environment requiring private conversation protection.
| Parameter | Specification |
|---|---|
| Dimensions | 140 × 65 × 22 mm |
| Jamming Intensity | 120dB (30cm) |
| Interference Distance | 1-6 meters (varies by device brand) |
| Interference Area | ≥15 square meters |
| Interference Angle | 180° |
| Remote Control Range | 1-20 meters |
| Power Supply | DC 5V/1A |
| Battery Capacity | 6000mAH |
| Operating Time | 2-4 hours |
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