After my daughter my CX680 has misplaced, now had to be the CX685, since I as endurance athletes like to go with music'm the partly long workouts while running, biking, cross-country skiing, mountain running, ski tour to make something entertaining ....... Sound: when using the right rubber articles for in-ear excellent clear bass with yet sufficient punch, balanced sound with precision highs and mids. I hear from punk, rock, classical, jazz really everything and even if the sound compared to my home system (Source: Iriver H140 or Thorens - Amplifier: Accuphase, headphones AKG 550) something little stage and dynamics, the sound still more sufficient. The sound source during exercise typically consists of an Iphone that just has a cheap AD converter! (Apple devices are overrated IMHO) On my Iriver H140 makes the CX685 through a better figure than the iPhone! Head Office: in which the wings were better than its predecessor CX680 something pfriemelig and sometimes the fit in the ear loosened (mountain running) so that the sound suffers (especially the bass). Sometimes the wing came off well. This is the CX685 now solved very well because the rubber hooks are integrated in the device, Even after 1-2 h no pain in the ear. Important when cycling no wind noise and therefore also strong acoustic insulation against the Umgebung.Dies could also be seen as only gripe. Be careful when cycling and while walking in the city because the ambient noise does not penetrate! But I want the sound and not the cars so I knew what to expect. I lead the cable often untern the tight T-shirt, Raddress etc to avoid the cable noise. The attached clip is not the optimum. Shelf life: All I can (still) do not say anything because I have him only a few days. With the predecessor CX680 I once had a cable break after 1.5 years, which was replaced without discussion by accommodating Sennheiser. In another CX680 I had (probably by humidity) contact problems in the external volume control, but lacks the CX685 and therefore so also can not go defective. Pay on life at 1 year to write something but honestly I do not expect any problems.
Am completely satisfied and as the price for the quality of the product fits he gets from me 5 stars!