Looking for loudspeakers, which operate over a Bluetooth connection, I came across the Arctic Sound System. Ordered, fast delivery, unpacked and happy. Cool Modern colors there are to choose from, so there is something for every taste. The speakers are easy to handle and are delivered in a perfect fitting carrying bag. The operation is simple, easy to synchronize with the phone and there you go. The volume is controlled via the sound system itself or through the phone. There is a great sound and is wonderful for geeigent balcony, park, garden, etc. Thanks for the great invention - highly recommended.