TECSUN PL-398MP Stereo Portable Full-Band Digital Tuning Radio Support SD Card Playback 1. Frequency range: - FM: 87-108 MHz - MW: 522-1620 kHz - LW: 153-513 kHz - SW: 2300-21950 kHz 2. Noise limit sensitivity: - FM: better than 3uV - MW: better than 1mVm - LW: better than 10mVm - SW: better than 20uV 3. FM stereo separation: better than 35dB 4. Number of station presets: 550 5. Output power: 2180mW x 2 6. Power supply: 3 AA batteries (not included)5V DC power supplyNiMH rechargeable batteries (not included) 7. Built-in speaker: 8 ohms, 250 mW 8. External headphones: 3.5mm diameter, 32 ohms 9. Weight: about 360g 10. Size: about 18.7 x 9 x 3 cm Features: 1. Dual-channel dual-speaker design provides an immersive stereo experience when listening to stereo programs 2. FM stereo, shortwave (2300–21950 kHz), medium wave, and long wave full-band reception; FM reception frequency range: 64–108 MHz, enabling reception of FM broadcast frequencies from China, Europe, the US, and Japan, as well as some campus radio stations 3. Utilizes the Si4734 digital signal processing (DSP) chip to digitally convert FMAM broadcast signals and employs modern software-defined radio technology for processing, enhancing sensitivity, selectivity, signal-to-noise ratio, and interference resistance 4. 7 tuning methods to choose from: Easy Tuning Mode (ETM), automatic search and browse radio frequencies, automatic search and browse saved stations, manual search for radio frequencies (VF), manual search for saved stations (VM), direct input of frequency numbers, and direct input of saved station address numbers 5. Intelligent variable-speed flywheel tuning knob 6. LCD display showing station frequency, signal strengthSNR, temperature, time, battery level, etc. 7. Smartmanual LCD and button backlight 8. 30-level electronic volume control 9. Manualautomatic shutdown (1-120 minutes) 10. Radio alarmbuzzer alarm 11. MP3 playback (SD card slot) 12.