Features: Brand new and high quality FM/AM/SW Full Frequency Receiver. With clock and alarm function. Low power symbol, charge symbol display. Memory function. Supports MICRO USB connection power supply (Charging cable NOT included). Boot state, can be set to mute state and lock frequency function. With the power off the total button, you can prevent the radio from leakage or turn on automatically after shutdown. Button automatic backlight function, easy to operate at night. Short-wave default step value 0.005MHZ, the default step value of 9KH or 10K, FM default step value 0.05MHZ. In FM mode, plug in earphone and long press the " Memory" button about 2 seconds, it will appear " STEREO" sign. Long press the " Memory" button again, the " STEREO" sign will be canceled, or pull out earphone, the " STEREO" sign will be also canceled. There are two ways to save channel: manual/automatically search. Specifications: Number of storage stations:60 (shortwave,medium wave,FM can store 20 radio stations). Single Signal Selectivity:better than 10dB Inside the Speaker:Diameter 57MM,8 euro,0.5 watts External Headphones:Diameter 3.5mm / 32Ω x 2 Battery:2 x AA battery(NOT included) External Power Supply:External 3V-5V DC power supply Low Operating Voltage:2V Stereo Resolution:≥32dB Distortion:≤0.1% Working Temperature:-15 - 80 (℃) Output Power:≤220mW Package Includes: 1 x Full Frequency Receiver Radio 1 x Earphone 1 x User Manual note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!