Sony has launched their Sony MDR-RF4000K, a pair of wireless headphones that come with an accompanying storage and charging dock. The Sony headphones have been developed to be compatible with your home entertainment system and come with a wireless range of up to 30-feet.
Once the headphone’s NiMH battery is fully charged, you can enjoy 7 hours of continuous use which can be bumped up to 10 hours using just a single AAA alkaline battery.
The new Sony headphones will go on sale this April though no pricing has been announced. At the time of launch, Sony expects to make available a second set of even more powerful headphones (MDR-RF810R) that will offer 13 hours of listening time (28 hours with a AAA alkaline battery power) and has an effective range of 100-feet.