On the Hisense TV sets there is a Digital Coaxial audio output available on the side of the TV set (Colour of the jack is dark Orange) – Cable can be a single RCA cable.
If a customer has a digital Amplifier / Receiver with the Digital coaxial input then they can connect the digital coaxial output from the TV set to the AMP / REC to get the sound from the TV set – cable can be a single RCA cable.
If the customer is using the RF (antenna) to get the signal to the TV set then they could also make use of the headphone socket on the side of the TV set to get the sound out from the TV set to the REC / AMP – cable can be a 3.5mm stereo to two RCA or 3.5mm stereo to 3.5mm stereo (depend on external device)
Note if this option is used then the customer will not get any sound from the TV speakers
If the customer does not have the digital coaxial input on the AMP or REC and they have a satellite receiver, to receive the signal to the TV set. Then they would need to connect the audio out from the satellite decoder to the AMP / REC to get sound – Two RCA to Two RCA Cable.
You can also get audio out from the TV set by AV (RCA) audio out to the amplifier AUX or AV in.