Summary: I truly enjoy the Z5's. I needed more sound from my laptops. Z5's are the answer. USB powered, makes them convenient, the resonant camber bass, gives a full rich sound which can fill a room due to the tower placement of the remaining speakers of the system. I have the Z5's wherever I take a laptop for a prolonged period. I don't carry them around I have several sets of them, even though they are quite portable. The remote control is just icing on the cake.
Summary: I bought these to use with a Vizio LED TV which has very canny sound. For their size the speakers put out a great quality of sound and you even get some base. The omni sound works great in our kitchen. The system probably won't fill a large room, but sounds great in a small-medium sized room. The USB power helps to keep cords to a minimum on the counter. I am very impressed with the quality for the price.
Summary: I bought these based on price and the positive reviews I'd read. I figured the worst that could happen was I'd have to send them back. I really LOVE these laptop speakers...sound is crystal clear and the bass response is as good as can be expected for speakers without a subwoofer. They can produce room-filling sound that rivals and even surpasses some of the micro stereos out there.