Once assembled, this remote control contains a button/coin cell battery. It is a lithium button/coin cell battery. If swallowed or placed inside any part of the body, a lithium battery can cause severe or fatal injuries within 2 hours or less. The battery is hazardous and should be kept out of reach of children at all times whether new or used. If you think batteries may have been swallowed or placed inside any part of the body, seek medical attention immediately or contact the Australian Poisons Information Centre on 13 11 26 or the New Zealand National Poisons Centre on 0800 764 766.