HumanTechnik InfraLight DIR Mode D'emploi page 13

2
When you first charge the battery packs for the headset receiver let
them charge for at least 14 hours. Only use originalbattery packs.
The package includes two battery packs and one dummy.
Please make sure that the
3
»line of sight« between your
transmitter and receiver is
not obstructed.
Charging control light
Dummy
english 13