These are almost identical to the 450BT's but without the ANC. They have great build quality with battery life (30hours! on 50% volume) to boot. The sound isn't going to be good as wired but as these are near identical to the 450BT's so they will sound as good as any mid/upper-mid range wireless headphones at a much lower price point! The only downside is that the holes in the ear-cups are a little small and there is no audio jack (like the 450bt's)