Data Disk

A Data Disk is a wrist worn communications device used by some Sorcerers. It takes the form of a large dark grey cuff worn on the wrist of the user with several claw like extensions that fold out when in use. A Data Disk acts like an advanced sorcerer variant of a Smart Phone or Smart Watch that uses Hologram technology instead of LED touch screens. The Disk will extend its claw like components out in a kind of flowering motion and then project a pale blue tinged hologram of either a touch display control pad or an image of another Data Disk user who is calling and talking to the wearer. The Disk seems to have multiple functions similar to a smart phone but has mainly been seen used as a form of hologram communicator between users. 
Data Disks seems to be common used among sorcerer kind but only those who live almost exclusively within sorcerer cities. Sorcerers who live hidden within Nonblood cities either do not use them or do not wear them regularly as they would likley be too inconspicuous in Nonblood society due to sorcerer kind being so much more advanced technologically. Most Data Disks seen are used as a personal communicator and kept much the same way as a Smart Phone among sorcerer kind but not as widely used likley due to the use of magic easily circumventing most other functions a smart phone would have.