Buy.com has the Delphi MyFi Portable XM satellite radio receiver for just $84.99 after a $50 mail-in rebate. New customers use our $5 off electronics coupon to save more. You can take this with you in the car and then unplug and take it into work. The MyFi can record and play back up to 5 hours of XM programming. Plus, get free activation online with our coupon code (XMFREEWEB). Price does not include subscription to XM satellite radio ($12.95/month).