)solar powered, no other batteries is required,

2)the logo will flash under any kind of light, such as lamp light, sun light.

3) Waterproof Solar Powered Flashing LCD with Image Inside Per Your Specification, making your logo or advertise more attactive and motional.  

4) Good for your premiums, promotional gifts and collection

5)Available capacities: 64MB, 128MB, 256MB, 512MB, 1GB, 2GB, 4GB and above, No driver required in Win Me / Win 2000 / Win XP system , High speed USB 2.0 Plug and play, no external power required Shock resistant,

6)Accessories choice: USB cable, users' manual, installation CD, lanyard, key ring,necklace

7)Unit size: 6.4*2.4*0.85cm(L*W*H) Inner packing: bulk/color retail box/gift box/tin box/blister card, customized designs accepted