Pulsar YM91 Instruction Manual page 2

THIS PRODUCT CONTAINS A BUTTON BATTERY
If swallowed or placed inside any part of the body, the battery can
cause severe or fatal injuries within 2 hours or less.
Button batteries are hazardous whether new or used. Keep batteries
out of reach of children.
If you think the battery may have been swallowed or placed inside
any part of the body, seek immediate medical attention. Contact the
Australian Poisons Information Centre immediately on 13 11 26
(New Zealand 0800 764 766) for 24 / 7 fast, expert advice.