MagnetoSpeed Chronograph XFR Shot Data Smartphone Download Adapter MSXFR MagnetoSpeed XFR display adapter MSXFR For transferring data from a V3 or Sporter display unit to a smart phone or tablet Compatible with iPhone and Android devices The XFR adapter and associated smartphone application allows users with Magnetospeed Sporter or V3 displays to download their current shot series to their devices XFR is NOT compatible with V1 or V2 display