Contains 6 batteries for powering TRēO for up to 2 months. Each battery lasts up to 12 days depending on daily use. Turning the TRēO OFF when not in use is important to prolong battery life. Two-month supply included with purchase of the TRēO.
The iHEAR Sport Lock adds extra support to your hearing amplifier. This helps keep the TRēO from coming out of your ear, and also assists in making the TRēO easier to remove. Included with purchase of the TRēO device.