Dirt Devil DD9002 Instruction Manual page 6

2. Connect the hand vacuum assembly to the extension tube. You'll
hear a "Click" when they're connected.
3. On/off button
a) Press the on/off button for more than 3 seconds, the machine
power on and works in low speed, the indicator lights up.
b) Press the on/off button again to switch to high speed.
c) Press the on/off button again and the machine stops working.
On/Off