7 
•  If the product exhibits a distinct change in 
performance. 
7.  Avoid using a telephone (other than a cordless 
type) during an electrical storm. There may be a 
remote risk of electric shock from lightning. 
8.  Do not use the telephone to report a gas leak in 
the vicinity of the leak. 
9.  Use only the supplied nickel-metal hydride cell 
(NiMH) rechargeable batteries! The operation 
periods for the handsets are only applicable with 
the default battery capacities. 
10.  Use only the supplied 12VDC +/-10%, 2A, limited 
power source wall mount Class II power supply 
adapter. Before connecting the MediaPack  to 
power, ensure that the VAC ratings match. 
11.  The use of other battery types or non-rechargeable 
batteries/primary cells can be dangerous. These 
may cause interference and/or unit damage. The 
manufacturer will not be held liable for damage 
arising from such non-compliance. 
12.  Do not use third-party charging bays. The batteries 
may be damaged. 
13.  Please note the correct polarity while inserting the 
batteries. 
14.  Do not immerse batteries in water; do not place in 
fire.