Check if there is power supply for the transmitter.
There might be several reasons why you do not hear sound from your Philips headphones. Try these simple steps below to be able to enjoy your music:
Check if there is power supply for the transmitter.
Chek if the batteries in the headphone are inserted correctly and are charged.
Check if the transmitter is properly connected to the audio source (such as TV, HiFi or PC).
Check the following:
In case all of the above does not help, there may be other problem with the headphones. Contact Philips Consumer Care for further assistance.