1. Watch MP3 Player, 1GB 1)Memory: 512M/1G/2G/4G/8G Flash Memory embedded memory. 2)Supported formats: MP3 (MPEG1/2, Layer3) + ventricle + U disc format 3)Interface: headphones, USB charging shared round four Pin Interface. 4)Battery: Lithium Ion Battery 120mAh/37V 5)High-quality audio recording: documents WAV format 6)Bit Rate: 32kbps ~256kbps 7)Output Rate Range: 20HZ-20KHZ 8)Output Power: 8MW+8MW:>=90Db 9)Signal to noise ratio 10)Platform: Platform 8.6 or above Windows98/Me/NT/2000/XP/Mac 11)USB transfer rate: USB 2.0 (high speed) 12)Radio frequencies: 87.5 (76) --- 108MHZ 13)Temperature: -10-50C 14)Radio input impedance: 40R 15)Sensitivity: 40DB/MV Colors Available: Sliver Type of Packing: Metal Box Package Includes: USB Cable, User Manual, Earphone