 Noel Lee is married with two children and two step-children. His son Kevin Lee, sometimes referred to as "Little Monster", started working for the company and developed the M-Design product line of high-tech furniture. Lee's son later quit Monster and started his own audio company Sol Republic in 2010. At the Lawrence Livermore National Laboratory, Lee was exposed to toxic doses of radiation, which caused a degenerative nerve disorder that prevents him from walking without a wheelchair or Segway.
