BT STUDIO 1100 - Manual (Page 47)

47 General information
It is recommended that if you have a pacemaker fitted
you check with a medical expert before using this
product.
Your product may interfere with other electrical
equipment, e.g. TV and radio sets, clock/alarms and
computers if placed too close. It is recommended that
you place your product at least one metre away from
such appliances to minimise any risk of interference.
Never dispose of batteries in a fire. There is a serious risk
of explosion and/or the release of highly toxic chemicals.
Cleaning
Simply clean the handset and base with a damp (not wet)
cloth, or an anti-static wipe. Never use household polish
as this will damage the product. Never use a dry cloth as
this may cause a static shock.