Auricular Bluetooth with built-in volume regulator to protect the nest's odeIt has multimedia controllers and boots to attend to callsInalmbricant connection up to 10 metersEntry and 35mm auxiliary outputMicroSD card readerBathroom with durability up to 18 hoursInalmbricated connectivity Bluetooth 50Carga va conexin MicroUSB DC5V150mAR frequency cable 20HzMIT20 K