DI-01B4 DIGITAL PHOTO VIEWERS ■ 1.1” CSTN LCD ■ Keeps around 40 pcs of your favorite photos(1.1") ■ Keeps around 60 pcs of your favorite photos(1.5") ■ Slide show ■ Rechargeable Lithium battery ■ Low stand-by current helps lasting the rechargeable battery life. 49mm in diameter,18mm in thickness Microsoft Windows Driver