Use the Bluesound Pulse Flex to listen to HiFi sound quality in small rooms. This speaker has a compact size that allows you to easily place it on a bookshelf or on the table. The speaker wirelessly plays music from your smartphone, tablet, or laptop via WiFi or Bluetooth. Stream music from streaming services and your own playlists or listen to online radio. If you link the speaker to other Bluesound speakers via WiFi, you can easily create a multi-room system. This way, you can listen to your favorite music in multiple rooms. First connect the speaker to the grid current.