1. Can play MP3 music from TF card(MAX 16G); 2. With FM radio, radio can automatically scan and memory channels; 3. With audio line in jack, can easily and perfectly to connect to your computer, MP3,MP4, mobile phones, , , etc; 4. With standard earphone jack, available for earphones to listen to radio and music; 5. Be available to select radio channels and music with 0-9 number buttons. It is user-friendly With music repeating fuction, can control to repeat the current ONE/FOLD/ALL MP3 file; Can choose previous folder or next folder to play; Output Power: 3W Playback Function: Radio Frequency Range: 100Hz-20KHz FM Radio style: FM (85-108MHZ) Decoding format: MP3 (8-320Kbps) Built-in li-polymer battery: 3.7V/500mAh, rechargeable Function: FM radio, MP3 player, computer speaker, voi Input power: 5V 500mA Signal to Noise: 87dB Charging time: 2-3 Play time: 2-10 colour:red Material:Plastic + metal size:123 x 26 x 71mm Package Contents: 10 x radio (built-in battery) 10 x audio cable 10 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.