I have a TR120 Sennhesier wireless headphone (I guess the HDR 120 is similar) that worked fine. Now the green on/off light as well as the red charge light don't come one. I charged the batteries; I changed the batteries. No help. I get static on all channels but that's it. I usually use this to listen to things on my computer. I haven't done anything different. It just stopped working. Ideas?

Audio Players & Recorders - Sennheiser - HDR 120 Consumer Headphones