No sound at all. The little green light is on the base. No sound from the earphones.

check the input to the base unit,and check the volume control on the headset..also put new batteries in the headset.Mine are a rechargeable type and are useless.BUT dont put headset back on charging stand with ordinary batteries in

When you have your head phone on your ears, there should be no Green light, unless you have another headset on the transmitter base in Front Slot.

Having Green or Orange light on the larger LED on the left side has nothing to do with the audio, that light is only for Charging indicator.

You should have ALL FIVE RED LED light on, if any one is out, you have a failed LED and would need to replace ALL small LED ( five of them on the right side) with LEDs from Radio Shack SKU# 276-143 High-Output Infrared LED or buy it from http://www.newark.com/optek-technology/op291a/ir-emitter-890nm-t-1-3-4-through/dp/08F2980.

The volume of the sound source (Mac) must be sufficient, otherwise the transmitter automatically turns off. Turn up the volume on the Mac, and turn down the volume on the headphones. There is no way to disable the Automatic On/Off function of the transmitter.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

The green plug needs to be plugged in into either a green jack at the back of your computer or into your laptops earphone jack. And if the second cord is a USB cord then plug it into a USB port. If it is a power cord then plug it into a wall socket.

first check you connected the earphone properly. earphone has two wire. connect earphone green wire where you connect the speaker.

Hello could some please help me with my Siemens Gigast A200, it has no display on the Base phone.

Well I have had the same problem as well, twice really. The first one got replaced by Sennheiser, very good service. Unfortunately about a year later the same problem, I am waiting now what they will do with this. I really like the little earphones but I need them to work. Untill now I have had great service which of course comes with the quality of the name.

I worked it out. I was having the same problem. you probably have the GREEN EARPHONE JACK plugged into the GREEN INPUT PORT on the side of the xrocker? simply move the GREEN EARPHONE JACK to the BLUE OUTPUT JACK on the xrocker and your sorted :) it was really bugging me so i messed about until i sorted it :)

The compatibility setting, in almost 100% of the cases, should be set to "1".  You can find it on the side of the base, it's a little turn wheel that will turn if you stick your thumbnail in it and twist.  I have seen one instance on the Cisco IP phones that requires the compatibility setting to be on 5, so try that as well.
If you have a lifter installed, make sure that the short telephone cable that comes out of the back of the headset's base unit is plugged into the handset port of the telephone (where the handset coily cord is normally plugged into).  You would then plug the handset coily cord into the front of the headset base unit.  Make sure you have that configuration, and try again.
Finally you can try a re-set.  To do this you should lift the headset off of the charging base, make sure the green light on the top of the base is off (the headset is off), and then do the following: 1. Hold down the mute button and the call answer button at the same time. (The mute button is the black little wheel on the top of the headset itself.  If you use the tip of your finger to push that straight in, it will mute the headset) 2.  Keep holding both buttons down until the green light below your thumb on the headset flashes for 2 consecutive series. 3.  Let go.  Wait about 20 seconds then try answering.
If this doesn't work, try a re-subscription: 1. Place the headset back on the charging base. 2. The two microphone volume adjust buttons on the back of the BASE unit should be pressed together.  This will start the red light and the yellow light blinking on the front of the base unit. 3. Hold the mute button down while the headset is still on the charging base.  Hold it down until the red light stops blinking. 4. Disconnect the power to the base so that the red light and yellow light turns off. 5. Plug the power back in after about 5 seconds of it being disconnected and make sure the red light on the front of the charging base is now solid and the yellow light is flashing. 6.  Pick up the headset and try again.

Ok.. get some earphones, nice simple walkman dollar store earphones. Put a cd in the cd tray or play an mp3.. look in the back of the pc for a green jack.. try it, try them all. Then look on the bottom right hand corner of the screen, any little speaker icon? open it, set the volume? No speaker icon? control panel, sound, make sure there is a sound card listed.
Work backwards logically with known working equipment.