??- Plastic case material<br />- Built-in MP3 decode chipset<br />- Supports USB flash drive (up to 4GB) & SD card (up to 8GB)<br />- File system: FAT16/FAT32<br />- Supports MP1 Layer3/MP2 Layer3/MP3 Layer3<br />- Power-off memory<br />- Voltage: 3.7V<br />- FM range: 87.5~108MHz<br />- Comes with remote controller (1 x CR2032 included)<br />- Remote control range: 10m<br /><br />                                                                                                                                Dimensions: 3.50 in x 1.26 in x 0.98 in (8.9 cm x 3.2 cm x 2.5 cm)<br />Weight: 0.71 oz (20 g)<br /><br />