Seagate Expansion 2TB Portable External Hard Drive USB 3.0 (STEA2000400) Amazon Details: Headphone unit * 1

Details: Headphone unit * 1

Once in place

These are compatible with FriXion Ball and FriXion Clicker pens

and bass when working out

Seagate Expansion 2TB Portable External Hard Drive USB 3.0 (STEA2000400) Amazon Details: Headphone unit * 1Seagate Expansion 2TB Portable External Hard Drive USB 3. 0 (STEA2000400) Brand: Seagate Color: Black Features: External portable hard drive formatted for Windows out of the box Drag and drop file saving USB 3. 0 powered For Mac compatibility this hard drive requires reformatting. Reformatting the drive will erase all content unless it is backed up to another drive. Refer to Application Guide for guidance on this. Platform: Windows Publisher: SEAGATE