• Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear
• Long battery life of up to 25 hours
• DSEE restores high frequency sounds lost in compression
• Splash-proof and sweat-proof with an IPX4 rating
• Easier, clearer hands-free calling
• Fine-tune your sound using the Sony | Headphones Connect app
• Easy to operation with buttons to play and pause, skip tracks and adjust the volume

• A well-balanced shape around the neck ensures a stable fit
• The WI-C100 headphones have a flexible neckband that fits to you
• Sync your headphones easily with Fast Pair.