Using your 15th Doctor's sonic screwdriver is easy. First, when it's closed, you can press the buttons to create different light and sound combinations. You can choose to have the emitter extended or retracted. To access more functions, extend the viewer/analyser arm. For the full experience, rotate the lower section 180 degrees left or right to open the sonic completely. Remember, opening and closing it will make an on/off sound. As for maintenance, keep it away from water and extreme temperatures. When not in use, store it in its Regeneration - style packaging to protect it. Have fun adding this awesome piece to your Doctor Who collection!