Sony has dropped us word of two pairs of wireless headphones that it'll be releasing in April. There's the MDR-RF4000K, and the MDR-RF810RK, but for some reason the company seems far more excited about the RF4000K, so let's look at those first.

The styling is designed to complement the company's "Monolithic" TVs and comes with a rather sexy charging dock that hides away wires from view. When you're not using the headphones, they fold flat and sit happily in the dock, charging. They have a 30-metre range, and inside there's a pair of 40mm long-stroke drivers that offer a frequency response of 12Hz to 22kHz.

They come in any colour, as long as it's black, and will run for about 7 hours listening time between charges. If you're stuck somewhere without your charger, you can also slot in an AAA battery for 10 hours of listening time. The headband is self-adjusting, and there's a closed-cup design for maximum sound isolation.

The MDR-RF810RK, on the other hand, has a more lightweight design - weighing just 220g - and has a considerably extended range of 100m from the base station. Useful if you live in a mansion, we suppose. It too has a 40mm driver, and offers 13 hours of listening time on the rechargeable battery, or 28 hours on an AAA. It has a slightly narrower frequency response, however, of 20Hz - 20kHz, and comes in black or silver.

Both sets will be made available in April. At the moment there's no pricing details, but as soon as we hear anything we'll let you know.

Via: presscentre.sony.eu

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