The JBL Free X Wireless Headphones feature a truly wireless design that deliver JBL's signature sound while maintaining flexible use for an active lifestyle. Ergonomic ear tips ensure a secure and comfortable fit that stays put no matter what, and with an integrated microphone that switches automatically to mono mode, you can enjoy clear, natural phone calls. These headphones are IPX5 splashproof with up to 4 hours of playback and a Bluetooth connection. Truly wireless Discover the freedom of a wireless lifestyle listening to music, managing your calls or working-out. JBL Signature Sound Immersive JBL Signature Sound delivered in an intuitive, intelligent package. 24 hours of combined playback Enjoy an entire day of wireless audio, with 4 hours of continuous playback and 20 hours of backup power from the charging case. Smart Charging Case Protect the headphones and charge them when not in use. Provides over 20 hours of total backup charge, with a 15-minute quick charge for 1 hour of music playback. Handsfree Calls Integrated microphone for clear phone calls. Automatic stereo-mono mode switching for a natural call experience. Call Mode Automatically switches to mono when making phone calls, for a more natural call experience. Easy Control Take full control of your calls and music with a single intuitive button. Comfort Stay Secure Fit Best-in-class ergonomics with 3 ear tip sizes and 2 gel sleeve sizes ensure a secure fit that stays with you, no matter what you are doing. Splashproof IPX5-certified design keeps the music playing through sunshine and rain.