WD My Book - External Hard-Drive Schlage Support two-way feedback in real

Support two-way feedback in real time

Auto Sleep Tracking

you can arm and disarm from anywhere

Yes Battery Cell Type Lithium Ion Weight 3

You can update the lock wirelessly through the app as new features are released

WD My Book - External Hard-Drive Schlage Support two-way feedback in realWD My Book. Compact outside. Powerful inside. Store massive amounts of photos, videos, music and documents with My Book desktop storage. Complete Backup. Equipped with WD Backup software for Windows and Apple Time Machine compatibility for Mac, the My Book desktop hard drive can back up your photos, videos, music and documents. The My Book desktop hard drive also works great with Acronis True Image WD Edition software to schedule full system backups.