We worked with the original author to design and build this radio. This machine has achieved a perfect combination of software and hardware, and in the future, the original author will work with us to update more firmware for it. Key has been activated. Suggestion: WiFi is very power -consuming. Use only when activating keys. It usually only shows the date, time, please close it when you go out to save battery electricity. You can see the 8-bit key, the standard is 12-bit. The key will be stored in the machine for a long time without worrying about the firmware update. New Upgraded Functions? 4 new DIGI, CWR, SYNC L, SYNC U are added in CW mode. It also adds wifi function, RTty decoding function, four audio spectrum. With more powerful functions, it can better meet the needs of radio enthusiasts. WIFI Function? The 4.15 version of ATS-25max-DECODER does not need to use the APP to connect to the network. It has its own wifi login option, which can be directly connected to the Internet, and the WIFI icon will be displayed on the page. Support TYPE-C Interface Upgrade Program? It use TYPE-C charging interface, maximum 1.5A charging current. 3.5mm stereo audio output, also supports 3.5mm audio fm antenna interface. Convenient and Compact? Full band radio receiver is compact and easy to carry. It can be used when traveling, climbing, camping, or sharing with family and friends. The built-in large-capacity lithium battery can be used for a long time without worrying about sudden power failure. Large capacity battery? Full band radio receiver is equipped with a 3000 mAh battery, The product is compact and easy to carry. It can be used for a long time without worrying about sudden power failure. 2.4-inch Color Touch Screen? This Si4732 radio receiver with 2.4” color touch screen allows you to read data more clearly. The shortwave radio shell is made of aluminum alloy, which is strong and wear-resistant and have a better user experience. More Functions? The scanning function, backlight adjustment and shutdown were mainly added. It usually takes about. International buyers please note. All Mails will be replied within 48 hours, except weekend.