For the money, an excellent choice for a wireless car speaker. Very powerful, although it crackles at high volume on wireless mode, but it doesn't need to go even to 1/4 of the volume even with open windows and speeds of 100+. It has a short and cheap cable, so if the body of the wireless is in the trunk, an extension will be needed. The speaker is a bit bulky compared to branded ones like diamond, so it doesn't fit everywhere.
It can also be used wherever a passive speaker is needed, for example in a local supermarket they have it instead of a professional system and it comfortably covers a hallway with just one speaker.