CREATE TABLE table_26797 ("Version" TEXT, "Dock Connection" TEXT, "AUX In" TEXT, "Battery" TEXT, "iPhone Certified" TEXT, "Video Out" TEXT, "Dual Voltage" TEXT)

Does the sounddock series I v2 have dual voltage?
SELECT "Dual Voltage" FROM table_26797 WHERE "Version" = 'SoundDock series I v2'
SELECT "Dual Voltage" FROM "table_26797" WHERE "Version" = 'SoundDock series I v2'