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65 comments
  • I remember using something like this - they can hook up to a barcode scanner you wear on your finger

    You had to strap them really tight on your arm, if you didn't the weight of the device would make it rotate around and have the screen point away from you

    • I have the same problem with my watch. I could tighten it but then it starts to hurt. Anyways I keep it just loose enough to be comfortable but tight enough I can correct it every half hour.

65 comments