MDPB-Mi1

The SZMID - MDPB-Mi1 is an innovative, end-to-end voice encryption device designed to secure communications across GSM, WCDMA, and the latest 4G network technologies while maintaining compatibility with 3G and 2G networks. Utilizing advanced source encryption technology, the MDPB-Mi1 converts voice data directly into encrypted digital signals, ensuring comprehensive protection of mobile phone conversations from interception or leaks. This encryption is achieved through the use of cutting-edge AES-128 dynamic coding, which encrypts each spoken word with a unique key, making it virtually impossible to decode without authorization.

With support for anti-AMR and anti-RPE-LTP compression coding, the MDPB-Mi1 ensures high voice quality and intelligibility without sacrificing security. The device operates seamlessly across various networks without compatibility issues and minimizes latency during the encryption process. By leveraging Bluetooth wireless technology, the device can easily connect to any Bluetooth-enabled mobile phone, enabling secure communication while remaining independent of the phone itself. The built-in microphone and handset facilitate clear and effortless conversations, while the use of a universal mobile lithium battery ensures portability and convenience, allowing users to maintain secure communications anytime, anywhere.

The MDPB-Mi1 also features a metal body for durability, physical buttons for quick operation, and a long standby time. It employs a standard Bluetooth protocol and a USB Type-C charging port, making it adaptable to most smartphones. The device offers an automatic connection and one-touch encryption activation, providing an effortless user experience.

This device is particularly suitable for high-end business professionals, government agencies, and security units requiring secure, encrypted calls. It effectively blocks phone recording functions during calls, preventing any unauthorized recording or data leakage. Designed to work across all major networks—China Mobile, China Telecom, and China Unicom—the MDPB-Mi1 provides a versatile and reliable solution for encrypted voice communications.

The encryption system consists of three core components. First, voice data is captured via Bluetooth from the mobile phone and encrypted within the device. The encrypted signal is then transmitted back to the phone and sent to the receiving party through the mobile network or other channels. Finally, the encrypted data is received by the counterpart’s mobile phone and transmitted to their encryptor via Bluetooth for decryption. The decrypted voice is played back through the mobile phone, completing the entire encryption-decryption cycle. This advanced architecture ensures secure, end-to-end encrypted communication, making the SZMID - MDPB-Mi1 an indispensable tool for safeguarding sensitive conversations.