Double connection, discover our Tonality Bluetooth headphones with its beautiful olive and sand colour; this foldable headphone has Bluetooth 5.1 for a wireless connection of the latest generation; compatible with all smartphones, tablets and other devices with Bluetooth connection; you can also connect your headphones wired to your product via the included audio cable and thus save the battery of the headphones. Long battery life, with the rechargeable battery of 400 mAh, you can enjoy a Play time of up to 30 hours; This headphone is ideal for long listening sessions; and accompanies you on all journeys. Passive noise cancellation, the ear circumference design of the headphones has been specially designed to surround your ears and naturally isolate you from the surrounding sounds; so it will provide you with passive noise reduction and is ideal for use in public places, public transport or on all your journeys. Comfortable, the helmet is adjustable and the helmet Adjustable, easily adapts to all body shapes; it is equipped with a padded foam headband for optimal comfort, even during prolonged listening; the helmet is foldable and can be easily stored in any situation. Hands-free call. With the built-in microphone you can answer the phone while holding your headphones upside down; also enjoy the control buttons behind the right earphone so you can remove and hang up with just one hand movement. With them, you can also manage your music by switching tracks or increasing and lowering your volume