     description_cart: "For use within an academic (non-commercial) context."
 
 get_vr_ar_product_ids = ->
-  return ['htcviveb','oculusdk2b','oculusdk2m','epsonbt200b']
+  return ['hololens_w120_e120b','htcviveb','oculusdk2b','oculusdk2m','epsonbt300b','epsonbt200b']
 
 get_additional_product_ids = ->
   return ['usbcupgrade','e120upgrade','support6','support12']

      description_store: "Add binocular eye tracking to your HTC Vive VR Headset. Includes binocular 120hz eye tracking cameras, clip-on attachment rings with IR illuminators and USB connector clip. No tools required!"
      description_cart: "120hz binocular eye tracking add-on for your HTC Vive VR Headset."
      img: [vr_ar_img_path,'htcviveb.jpg'].join('/')   
    usbcupgrade:
      cost: 210
      title_product: 'USB-C Clip Upgrade'

      description_cart: "Binocular Oculus Rift DK2 add-on cup with 2 x 120hz eye camera."
      img: [vr_ar_img_path,'oculusdk2m.jpg'].join('/')
    epsonbt200b:
      cost: 550
      title_product: 'Epson Moverio BT-200 Eye Camera Mounts'
      title_store: 'Epson Moverio BT-200 Binocular Mount Add-on'
      description_store: "Binocular camera mounts for Epson Moverio BT-200 with USBC Clip. Use with the 120hz eye camera upgrades or existing 120hz eye cameras from a Pupil headset."
      description_cart: "Binocular camera mounts for Epson Moverio BT-200 with USBC Clip. Use with the 120hz eye camera upgrades or existing 120hz eye cameras from a Pupil headset."
      img: [vr_ar_img_path,'epsonbt200b.jpg'].join('/')   
    epsonbt300b:
      cost: 550
      title_product: 'Epson Moverio BT-300 Eye Camera Mounts'
      title_store: 'Epson Moverio BT-300 Binocular Mount Add-on'
      description_store: "Binocular camera mounts for Epson Moverio BT-300 with USBC clip. Use with the 120hz eye camera upgrades or existing 120hz eye cameras from a Pupil headset."
      description_cart: "Binocular camera mounts for Epson Moverio BT-200 with USBC clip. Use with the 120hz eye camera upgrades or existing 120hz eye cameras from a Pupil headset."
      img: [vr_ar_img_path,'addon_epson_bt300b.jpg'].join('/')         
    htcviveb:
      cost: 1400
      title_product: 'HTC Vive Binocular Add-on'
