I bought an Electrolux vacuum with a variable speed knob from Harvey Norman 3 years ago (~RM300+) with 1+4 years extended warranty for an extra ~RM80 and it was spoiled after 3 years. So HV gave me a full refund of the price I paid initially to purchase a new vacuum cleaner (after send in for repair for two times). Still goes back to Electrolux now with remote control on the handle ZAP9940 #canggih