SIMPLE ASSEMBLY: The FM module comes pre-soldered, so you only need to assemble the battery, antenna, speaker, buttons, and cases to complete the project. If you enjoy building projects and are new to electronics, this radio kit is an perfect starting point. You will get the satisfaction of creation with your own hands and learning about the components involved in a simple FM radio. FM/MW/SW FREQUENCY: Press "AM/FM" to select different bands: FM/MW/SW. FM frequency range: 87-108MHz; MW medium wave range: 522-1620KHz; SW shortwave range: 4.75-21.85MHz. The receiving effect can be achieved by adjusting the angle of the antenna. In addition, receiving MW medium wave band program does not need to adjust the antenna, it relies on the magnetic rod coil to receive signals, and the machine body must be turned to receive a better signal. SEARCH AND STORE PROGRAMS: In the radio state, the user can operate to search all stations and store the programs. Long press the "ALARM" for the M- function, and long press the "ALARM_ON/OFF" for the M+ function. Users can quickly change programs by pressing the "M+" or "M-" button. POWER OFF MEMORY FUNCTION: This radio has a time display function, and you can set the correct time according to the instruction manual. When the clock or the radio is turned off, it will remember the local time and the last program that was playing and display them when turned on again. RECHARGEABLE: The battery displays the current battery power. When the battery is 0, the battery power is low and needs to be . Plug in the charger, the battery flashes, indicating that it is being . After full charge, the battery is full and stops flashing. 5V mobile phone charger (Type-C interface) can be used to charge for it. Colour:Photo Color Material:plastic Package Contents: 1 x DIY Digital Radio Kit(unassembled version) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.