The Flex has a rechargeable lithium-ion battery that offers up to 12 hours of playback — enough to last you through your all-day family reunion or a lazy afternoon at the park. The Flex uses USB-C charging with the charging port strategically placed on the opposite side of the utility loop, so you can charge and play the Flex in any position without missing a beat.
Pair a second SoundLink Flex or Bose Bluetooth speaker for Stereo Mode (left-right channel) or Party Mode (simultaneous music playback). When at home, the Flex works flawlessly with one or more Bose smart speakers and soundbars to extend your listening experience using Bose SimpleSync technology. When the Flex is connected, ask your voice assistant to play music on your smart speaker, and content will play simultaneously on both.
