Title: Disappointed
Review: As Discovery 640, it's extreamly comfortable to wear and you will even forgot u are wearing it. it's light weight, stressless to your ears. but it's terrible that Discovery 645's talk time is only 3 hours (on spec.), while its previous version Discovery 640 got 5 (on spec, too) due to its DSP noise cancelling function, it drain battery badly, and the MOST DISAPPOINTED thing is there is NO MULTIPOINT !!! it's pointless to buy this newer version will less talk time and the most important multipoint function (which mean while u have your headset connected to your computer, u can't answer a phone call with the headset). The bottom line is : I'd not recommand you to buy this product.
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