M-Cab AC MP3 Creative Zen Micro 680MAH LION. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 680 mAh, Compatible products: Creative Zen Sleek, Zen Sleek Photo, Mico Zen, Zen Micro Photo. Weight: 21 g. Colour of product: White. Dimensions (WxDxH): 54 x 35 x 4.5 mm, Input voltage: 3.7 V