MULTIPLE POWER MODES1) AC power supply (only EU plug is provided), 2) Built-in 1200mAh rechargeable battery 3) D-type battery.Please remove D-type batteries during charging the portable radio, as this may burn out the fm radio or batteries. EXCELLENT RECEPTION1) This portable radio with powerful DSP chip, locating and capturing more sensitive stations; 2) Circular adjustment window with removable wheel over 270 for easier adjustment; 3) The vintage bluetooth radio with telescopic metal antenna (up to 50 cm) for better FM and SW reception. CLASSIC AND PORTABLE DESIGNPlace the vintage radio set on your table and relive old times! Thanks to its portable size (23 x 15 x 10 cm) and weight (1.23 kg), you can take it anywhere and listen to retro vintage radio or mp3 files without any hassle. EASY STATION SEARCHStep 1, turn on the small portable radio. Step 2, turn the band switch button to FM, AM or SW. Now you can turn the tuning dial to tune in and freely enjoy your favorite radio stations. The built-in magnifying glass on the adjustment dial will help with adjustment accuracy. 4 IN 1 MUSIC PLAYBACK METHODS1) The retro radio supports Micro SD card (up to 32GB). 2) This battery operated radio supports playing music with AUX cable (not designed for power supply). 3) Bluetooth supported (within 10m). 4) USB Flash Drive socket (up to 32 GB).