HumanTechnik INFRALIGHT DIR Instrucciones De Servicio página 13

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