9.4% of those consumers who bought new mobile handsets in Q4 2007 took the recycling option in Q4 2007, according to iSuppli. 36.8% of all old handsets were stored away in Q4 2007. 15.5% of US consumers gave away their old mobile handsets in this fashion. 8.5% of consumers donated their handsets to charities. 5.7% said they re-tuned their old phones to the retailers where they originally bought them.