LG 50PM470T User Manual page 71

✎ Electronic devices nearby may cause communication interference. Devices
such as microwave ovens and wireless LANs use the same frequency range
(2.4 GHz) as the Magic Remote Control and may cause interference.
✎ The Magic Remote Control may be broken if dropped or damaged in any other
way.
✎ Take care not to bang it against other hard objects such as furniture or the
floor.