CUSTOMIZABLE Take a hearing test through the app on your phone and adjust the settings to your own hearing. RECHARGEABLE Powered by a high-performance lithium-ion battery. Get 15 hours of use per charge! APP CONTROLLED Connect with the companion smartphone app via Bluetooth to adjust settings as needed. DUAL MICROPHONES Equipped with two directional microphones to provide superior noise cancellation and sound clarity. COMPACT DESIGN Inconspicuous and small enough to be comfortable for all day use.