Necklace Design, No Display
Music Format: MP3, WMA, WAV
System: Windows 2000/XP/Vista
Power Source: Built in Li-Polymer
Bit rate: 32-320Kbps
Earphone Jack: 2.5mm
SNR (Signal to Noise Ratio): >85dB
Output of earphones: 2 x 5mW (32Ohm)
USB: 2.0
Dimension: 43L x 15W x 8D mm
Water Resistant ( not underwater )
Color: Black/ Blue/ Green/ Red/ Yellow/ Silver