Sharp ZQ-290HS Operation Manual page 43

Accessories: 2 lithium batteries (installed), CD-ROM software,
USB PC-Link cable, operation manual, stylus, carrying
case with belt clip
* Memory at 1.5MB Equivalent. Approx. 7,000 telephone names &
numbers (names & numbers <home, office, fax and mobile> are 14
characters and address is 38 characters per entry) can be stored by
using compression technology. (Compression Rate: Approx. 1.5:1)
41