Product Description

Universal projector mount for small/medium projectors

1. Slide together mounting plates for quick install/removal
2. Adjustable extension tube
3. Built in pitch/tilt control
4. Ceiling mount and dress flange

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Product Details

• Amazon Sales Rank: #52603 in Consumer Electronics
• Brand: Bose
• Model: PM-1
• Dimensions: 1.00" h x 6.00" w x 6.00" l, 18.43 pounds

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Customer Reviews

Superb Noise Cancelling Technology and Comfort
These headphones are incredible: superb sound quality and amazing noise cancelling ability.

Comfort:
Generally, I dislike headphones because they push the ears into an awkward position making them uncomfortable. However, these headphones are exceptional comfortable because they put minimum force the ears thanks to the extremely soft cushions. Furthermore, they are very light, compact and generally much more comfortable that the Quietcomfort 2 Headphones.

Noise Cancelling:
This is the most amazing feature of this product. When these headphones are used in a crowded room the background noise completely disappears, it's unbelievable. The only noise you can hear, apart from your music, is the closest person that is talking to you.

As with all good noise cancelling headphones/earphones they carry a high price tag but with these you really do get what you are paying for; a disturbance free world between you and your music!

Very good
For fans of noise cancelling headphones, especially Bose ones, these are a lighter alternative to the fantastic QuietComfort2's without sacrificing audio-quality.

QC3's are the successor to the very successful QC2's. I've had a set of QC2's for about 3 years and absolutely love them. When I got a chance to compare the QC3's I jumped at it. From a simple design perspective, the QC3's are lighter on-ear headphones than the heavier, over the ear cup-type QC2's but you can't tell from wearing them. On the ear designs need to grip the head more firmly and this extra pressure seems to negate any weight loss. The headphones feel slightly less secure than over the ear models but have the benefit that your ears don't get as hot on long journeys.

The sound is what you would expect from Bose; clear fluid highs, a warm bass and good separation of tones across the entire frequency. These are superb headphones which faithfully produce all types of music. The noise cancelling technology is apparently stronger in the QC3's than the QC2's to account for the design differences between the headphones but I really couldn't tell any major difference. The QC2's may just have the edge but that is what you would expect from the over ear design. The build quality is also superb with a great carrying case supplied and as the battery is rechargeable they're also very convenient.

If you are looking for great sounding noise-cancelling headphones but are put off by the large size of many of the current offerings and can afford them, these are the ones for you. If you don't mind the slight size difference I would go for the QC2's.

lightweight wonder
I was looking around for ages for a pair of noise reducing headphones.
I had read nearly every review on every set of headphones available.
I eventually after much deliberation settled for the quiet comfort 3.
The best alternative to these were the in ear sets I tried.I always find however that if I have them in for a long time I start to feel discomfort.
I've tried many an in ear set and it doesn't matter how good the fit is
after a while they just don't seem right.
The Bose Quiet Comfort 3 is very comfortable using a memory foam cushion covered with light imitation leder.They are on ear and not over ear but due to the foam this did not effect the performance.As far as the sound quality is concerned they have a very rich deep base and while lacking a little at the higher end they deliver overall a high quality sound.
The noise reducing qualities are very good.While testing them at home just watching TV they blocked out all of the background sound with only the voices capable of being heard and even they were fainter.
The price of this unit is a bit steep but like anything a little bit designer you expect to pay a premium for the name.Apart from the functionality as described my decision to buy this unit was influenced as follows.They look great.They are light.The lightness is enhanced by the new lithium batteries used instead of AA's in the Old versions(QC2).
The battery has a life of 20 hours and the units in the UK come with a spare(so 40 hrs)unlike in the US where only one battery is supplied.
They are folding and come with a nice travel pack and the cable is detachable from the earpiece so everything can be neatly stored.The price is a bit high but look what Bank & Olufsen charge for normal head phones.