1. Frequency range: - AM: 522-1620KHZ(9KHZ), 520-1710KHZ(10KHZ) - FM: 76-108MHZ - AIR: 118-138MHZ 2. Sensitivity: AM: within 20mVm, FM: 8Uv, AIR: 2uV 3. Lithium battery: 3.7V 400mAh 4. External power supply: DC 5V 5. Channel selection method: manual, memory, automatic, automatic search and storage of radio stations 6. Function: digital display, automatic shutdown 7. Number of radio stations: 120 8. Signal to noise ratio: 48dB 9. Encoding chip type: DSP 10. Material: ABS 11. Channel: two-channel 12. Packing list: radio x1, stereo earbuds x1, USB charging cable x1, lanyard x1, operation manual x1, storage bag x1 13. External earplugs: 3.5mm18 ohms x2 14. Size: about 9x3.9x0.7cm 15. Weight: about 31 grams Features: 1. Mini size, can be put in the pocket, can be hung on the chest, easy to carry 2. High-sensitivity reception, stable reception of AIRFMAM bands 3. Large-screen LCD digital display (size: about 28.5x28.5mm), which can display the audio frequency point, volume, band mode, time, battery symbol, charging symbol 4. The LCD is designed with orange backlight, which is convenient for operation at night 5. The chip has a large capacity, which can store 120 radio stations (FM band: 50, AM band: 20, AIR band: 50), and the machine has a memory 6. Two radio storage methods, automaticmanual storage 7. A variety of search methods, manualautomaticautomatic search 8. Automatic shutdown function can be set for 908070605040302010 minutes 9. Hours can be selected: 12 hours or 24 hours 10. Design lock key to avoid misoperation 11. The medium wave step value is 9KHZ10KHZ, which can be adjusted according to the needs