I purchased this to view TV without disturbing others in my house; for example, late night viewing. I chose this model because the transmit frequency is 2.4 GHz. My previous selection was a 900 MHz wireless headset through which I heard constant interference, similar to a tapping noise, unless I turned my head 90 degrees. This may have been due to a nearby wireless ethernet hotspot, I'm not sure. I returned it and began searching for a 2.4 GHz model instead.This device is probably identical to "Sony MDRHW300K Digital Wireless Headphones" which for some reason is a differently-advertised product here on Amazon.com. I reviewed that device and have copy/pasted my review here. Please note that I did not purchase my Sony MDRHW300K Digital Wireless Headphones from Amazon, but rather from a local BigBox retailer because of a gift certificate given to me. Long story short, I returned it. Here's why:1) This device contains a rechargeable battery, of course, built into the headset somewhere. There is a charge port located on one of the ear cups (see the photos I uploaded, elsewhere on this review section). The charging wire has a standard USB connector that plugs into a computer or an A/C adapter block (costing several dollars, available everywhere, even 7-11). The headphone connector is an odd-shaped mini-USB that in my experience has no other use. See the photos I uploaded elsewhere on this review section for a comparison of what I consider a "standard" mini-USB connector, and this device's mini-USB connector. Why the fuss? Two reasons. ReasonOne, an extra wire having a tiny connector is needed, rather than the more familiar charging cradle. This increases the wire mess thereby decreasing the convenience and ease of use of this device. Furthermore, consumers will need to plug in two separate A/C adapters; one for the transmitter associated with this headset, and another for the headset's A/C adapter. ReasonTwo, many consumers have several USB wires laying around where one end is the standard mini-USB connector. Sadly, those are not interchangeable with this headset therefore should the consumer desire a charging wire of a specific length, or for whatever reason, these wires with the odd-shaped mini-USB connector have to be purchased separately. While one or both of these reasons may not apply to some users of this device, I predict that anyone using it for TV watching will be disappointed because of this inconvenience. Sony ought to have designed a recharge cradle (like its other headsets), or alternatively, provided a connection in the back of its transmitter for the charging wire. And it should have used the "standard" mini-USB connector.2) The foam cushion surrounding the ear cups is very thin. After 20 minutes of use, I began to experience external ear discomfort due to the hard plastic or metal speaker shroud pressing against me. I've never felt this before, and have used multiple wireless headsets and wired headsets for TV viewing, airplane flying, and noise protection (speaker-less), collectively, for decades. The rather thin layer of foam is easily compressed flat (see the photo I uploaded, elsewhere on this review section). Even if the recharge wire issue does not adversely affect you, this design flaw will.Even though the sound was clear (no tapping static like the 900 MHz headset I tried previously), I recommend not purchasing this device. I am still in a quest to find a 2.4 GHz headset that recharges on a cradle, is comfortable to wear for 2+ hours, does not have a 100-200 msec "digital delay" like some manufacturers' models, and costs under $150.