Receiving Sensitivity: MW: Better than 10 mV / M FM: Better than 18 dB SW: Better than 60µV MW (9K) 522-1620KHZ MW (10K) 520-1710KHZ LW (long wave) 153-279KHZ Specification: Type: Type 1 (MW tuning step is 10 KHz), Type 2 (MW tuning step is 9 KHz) (Optional) Type 1: Suitable for the following countries: North and South America: Brazil, Canada, Chile, Columbia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Panama, United States, Venezuela Asian: South Korea, Philippines, Taiwan, Southeast Asia: New Zealand Type 2: Suitable for other countries except the above countries. 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 / 32O 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: 1% Working Temperature: -15 - 80 () Output Power: 220mW Dimensions: 125 x 77.25 x 21 (mm) Package Weight: 190g Quantity: 1pc Package included: 1 x Full Frequency Receiver Radio 1 x Earphone 1 x User Manual See more[Featured Memory Function?] ----When listening to a frequency in any band of FM and AM, after switching to another band or band, when returning again, the frequency of the band band that was listened to before will still be retained (in the case of uninterrupted power ), the frequency in the short wave only retains the frequency in the last listened band. [Featured Memory Function?] ---When switching between different frequency bands, switching to another frequency band can clearly indicate the band number of the frequency band. The band number is displayed at the position of the address number when the channel is fetched or saved in the upper right corner of the display. Functions - ?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. Functions - ? AM FM Radio Portable with clock and alarm function. ? Low power symbol, charge symbol display. Memory function. ? Boot state, can be set to mute state and lock frequency function. ? Number of storage stations: 60 (20 stations can be stored each for short wave, medium wave, and FM). There are two ways to save channel: manual/automatically search. Mini USB Speaker- Mini USB portable FM/AM/SW/LW/TV Sound Full Frequency Receiver Supports MICRO USB connection power supply (Charging cable NOT included). FM AM radio compact stereo travel speaker music player with very portable design and exquisite workmanship.(Note: Only applicable to the United States, Canada, and Mexico ).