Wireless hands free and Wired Under Bluetooth/MP3/FM modes,wireless listening set you free from cables. Just connect to a 3.5mm audio cable that can help you enjoy music everlasting when headphone runs out of power Pair Easily, Stable Connection Adopting advanced Bluetooth Technology, these wireless headphones are compatible with your most electronic device such as Phones, Tablet, PC, and Laptop,TV...It supports to be connected up to 33ft (10m). MP3 and FM Radio multi Functions Support maximum 32GB TF card(TF card is not included in the package), although no connect to bluetooth device,sounds never stop. FM Radio brings you to listen to the news or talking shows or musics Big Button for Easy Control and Press No matter you want to switch mode or music or Volume, you can easily to press the buttons without take it off your head. Light Weight & Foldable Design You can fold it into a portable bag or case, you can also hang it on your neck. It occupies quite little space and quite light weight. It is your best travel companion. Comfortable fit Quite soft leather earmuffs material,extendable headband provide you all-day-long comfortable wearing to enjoy music.