Media-Tech presents a multifunctional EPSILION BT MT3591 Bluetooth 4.2 headset with a built-in microphone, FM radio and microSD card reader.These headphones have a very good sound and very convenient operation. These headphones are powered by a durable lithium-polymer battery. Thanks to the Bluetooth 4.2 energy-saving technology, the working time on a fully charged device is up to 5 hours.EPSILION BT are compatible with PCs, smartphones and TVs equipped with Bluetooth interface. The buttons are placed on intuitive spots so the music management, answering / ending a call is extremely simple.Another advantage of EPSILION BT headphones is a built-in microphone - it's a perfect tool for a phone call or an instant voice message.An additional advantage of MT3591 is the ability to use them as wired headset (3.5mm mini-jack). This function is ideal in case of low battery.In addition, the EPSILION BT can operate as an independent source, just use a microSD memory card (up to 32GB) with your favorite music or turn on the FM radio and listen to available radio stations.The headphones are equipped with a microUSB slot. The same charger for your smartphone and headphones! If needed, the EPSILION BT headphones can be folded up, so they do not take much space in the bag.