5V 3W Portable USB Radio FM MP3 Memory Card U-disk Speaker Player

Features: Memory card + U disk playback FM FM radio Loop, single loop, all loop one button switch Short press the cycle key When the screen is displayed as ONE, it means the single loop, and then press the screen to display ALL to indicate all loop playback Power failure memory Headphone output function Energy saving protection (18650 battery) Frequency range: 87.5-108MHZ Working voltage: 4.2V Rated impedance: 4 Power: 3W MP3 bit rate: 8k 320k bps Frequency response: 20Hz-20KHz Signal to noise ratio: 85dB Distortion: