Attention: The current system version is 4.2. We collaborated with the original author to design and build this radio, achieving a perfect combination of software and hardware. Future firmware updates will be provided in partnership with the original author. The license code is activated. To view the key: open the panel, click "Next," then click "Info" and twist the rotation. You will see an 8-bit key, while the standard is 12-bit. Contact us if necessary. The key is stored in the machine and will not be affected by firmware updates. Suggestion: WiFi is power-consuming. Use it only when activating keys to conserve battery. Normally, only date and time are displayed; turn off WiFi when not in use to save power. Specifications: Frequency Ranges: 132 kHz - 30000 kHz (AM, SYNC, SSB, CW, DIGI); 64 MHz - 108 MHz (FM with RDS function) Digital Mode Decoder: FT8, FT4, PSK, RTTY Touch Display: 4 inches, 480x320 pixels Dimensions: 115x85x30 mm Battery: 4000 mAh Charging: 5V/≤1.25A WiFi: Supported SMA Connector: For connecting an external antenna Stereo Speakers: Supported Shell Material: Aluminum alloy Support: 3.5mm stereo audio output Interface: BNC Features: New Functions: Adds 4 new DIGI modes: CWR, SYNC L, and SYNC U in CW mode. Introduces WiFi function, RTTY decoding function, and four audio spectrums for enhanced usability. WiFi Function: Connect to the internet without an app. The radio has its own WiFi login option with a visible WiFi icon. Support for TYPE-C Interface Upgrade Program: Uses TYPE-C charging interface with a maximum 1.5A charging current. Supports 3.5mm stereo audio output and FM antenna interface. Radio Search Function: Features a radio search and direct frequency input via numeric keyboard. Includes HAM band shortcut channel; AM Bandwidth: 1-6K; SSB Bandwidth: 0.5-4.0K. 4-inch Color TouchScreen: The Si4732 radio receiver comes with a 4'' color touchscreen for clearer data reading. The aluminum alloy shell is durable and user-friendly. Additional Functions: Adds scanning function, backlight adjustment, and shutdown options. Package Includes: 1 x Receiver 1 x Telescopic Antenna 1 x WIFI Antenna 1 x USB Charging Cable 1 x Stylus