Flex

The Bose SoundLink Flex Bluetooth speaker is engineered to deliver deep, rich sound and powerful bass wherever life takes you. It doesn’t matter whether the portable speaker is standing upright, hanging, or flat on its back, its proprietary PositionIQ technology automatically detects its orientation and ensures optimal sound in any position. https://www.bose.com/en_us/products/speakers/portable_speakers/soundlink-flex.html#v=soundlink_flex_black