Features: 1) Music format: MP3/ WMA 2) Chip: Action chips USB1.1 3) LCD: 7 colors backlight 4) ID3 function 5) 16 languages 6) Capacity: 64MB-1GB 7) Voice recording: high-quality recording (36 hours) 8) 5EQ (Jazz, Classic, Rock, Pop, Normal) 9) Battery: 8 hours playback with one AAA battery 10) FM radio: 87.5-108MHz (optional) 11) Dimensions (L x W x H): 85 x 32 x 21mm 12) Weight: 40g (without battery) Specifications: 1) SNR: 90db 2) Earphone output: 5mw-5mw 3) Output Range: 20Hz-20KHz 4) Port: USB1.1 5) Capacity: 64MB-1GB 6) Recording format: WAV 7) Play format: MP3/WMA 8) Zip speed: 32Kbps-256Kbps Packing: 40pcs/ctn Carton dimensions: 46 x 35.5 x 26cm N.W.: 10kg G.W.: 11kg