1 MP3, WMA: - Earphone output: 40mw*2/16R/-75db - MP3: 8k~320k - WMA: 32kbps-380kbps - Audio frequency: 20Hz~20KHz - SNR: 88db 2 Charging time: 1.5 hours (Charge 4 hours at the first time) 3 Music format: MP1, MP2, MP3, WMA 4 Time demonstraion: picture + number 5 Language selection: English, Korean, Spanish, German, Portuguese, Tranditional Chinese, Simplified Chinese 6 Support Windows 98/98SE/ME/XP A Available capacity will be less B Reported capactity will vary C Actual battery life will vary with use Package Contents: MP4 Watch USB Cable Earphone Driver CD AC adapter User's Manual