These JBL Wave Flex earbuds use JBL's Deep Bass Sound to give you high-quality audio with plenty of low-end thump. You'll feel every beat of your perfectly curated playlists when you're out and about. Plus, these babies have an IP54 rating which means they're water and dust resistant, so they won't let you down even if the Great British weather does. And the ergonomic open stick design lets you hear every note clearly without blocking your ear canals - they're so comfortable you may even forget you're wearing them.Good to know- Smart Ambient technology lets you choose how much ambient sound you let in - perfect when you're listening out for your train- With 8 hours of battery and an extra 24 hours in the charging case, the tunes never have to stop- Need a quick boost? Speed charge for just 10 minutes and get an extra 2 hours of battery- VoiceAware lets you choose how much of your own voice you hear when you're on a call- Take control of your tunes with the JBL Headphone app and fine tune the EQ or adjust ambient levels