Sennheiser All-Day Clear: Endorsed by Hearing Care Professionals Clear and vibrant hearing performance: Automatically adjusts to the sound environment around you, providing support for adults with mild to moderate hearing loss Easy set-up and customization: Simply set them up in a few minutes using the intuitive app which features personalization options - no audiologist or appointment required All-Day comfort and secure fit: The proven and modern take on a classic receiver-in-the-canal (RIC) design provides long-lasting comfort and a discreet fit Seamless Bluetooth connectivity: Built-in BT lets you connect to your iOS or Android smartphone for hands-free calls, music streaming, podcasts, audiobooks and more with just a tap on your phone Extended battery life: Dependent on individual usage, the rechargeable battery offers up to 24 hours of continuous use, supporting you throughout the day 30-day risk free trial