100% of the reviews on Amazon.co.uk give this product a positive rating.

usability, comfort, sound, portability, design

reliability

90% of the reviews on Amazon.com give this product a positive rating.

usability, price, sound, design, size

93% of the reviews on Amazon.ca give this product a positive rating.

50% di recensioni su Amazon.it attribuiscono a questo prodotto una valutazione positiva.

90% de los comentarios en Amazon.es otorgan a este producto una calificación positiva.

Some of the CS540’s features which are listed below give the user the freedom to multi-task while still being able to handle their phone calls efficently.

Feels great on the ear, easy to use, light weight, and I have had no problems hearing.

None at all easy to set-up

We have a number of these headsets in our call center. We have very few issues with them. If you put them on charge during lunch they will make the whole day. Unlike some earlier model we rarely have to re-sync these to their base

The batteries last around a year and are expensive if you need to purchase a lot of them. Though this is the same for other headsets we have used as well

We have a number of these headsets in our call center. We have very few issues with them. If you put them on charge during lunch they will make the whole day. Unlike some earlier model we rarely have to re-sync these to their base.

The batteries last around a year and are expensive if you need to purchase a lot of them. Though this is the same for other headsets we have used as well.

We have a number of these headsets in our call center. We have very few issues with them. If you put them on charge during lunch they will make the whole day. Unlike some earlier model we rarely have to re-sync these to their base.

The batteries last around a year and are expensive if you need to purchase a lot of them. Though this is the same for other headsets we have used as well.

Lightweight, nice design

Callers complain of feedback (hearing themselves) - untouched by relocating base, or adjusting settings). Within six weeks, callers began to sound like they were underwater, and volume was dramatically lower; again, no amount of relocation or...

Lightweight, nice design.

Callers complain of feedback (hearing themselves) - untouched by relocating base, or adjusting settings). Within six weeks, callers began to sound like they were underwater, and volume was dramatically lower; again, no amount of relocation or...

Lightweight. Easily converts from over-the-ear to over-the-head set up for other occasional users.

Outside callers frequently sound like they are underwater. Internal callers complain of feedback, have to hang up and call again. Base-to-telephone or base-to-computer relationships make no difference. Normal headset use is 5 hours, 1 hour on charge...