BenQ Joybee 102R MP3 Player, 128MB, Green Wearable MP3 Player, Super light-weight, miniature design Super light (0.35 ounce) and super mini (1.6x1.6x0.3 inches), Shock Resistant Rechargeable Li-Ion battery,Battery life - 8 hour(s), MP3/ WMA/ WAV support PC interface(s) supported - USB 2.0 Full Speed, Arm Band and Necklace headphones included Half the Height and Half the Weight of the Apple iPod Shuffle