Features: The newest multifunctional headset is the upgraded version of NX8252 BT headset. 4 in 1 Multifunctional stereo BT Headphone: Wireless Stereo BT + Card MP3 player + FM Radio + Wired Headset function. 3.5mm audio jack, provides a simple wired connection of a variety of music players (Such as, MP3 / MP4, etc) without BT function. Easy to pair with almost any BT-enabled audio / music players devices, such as, Smart Phones, Tablet PC, Laptop, NoteBook, etc. DSP noise cancellation, bring you clear sound effect. Be designed with two High-grade speaker and has built-in Mic,, powerful bass system, bring you superior sound effect. Best choice for listening to music / FM Radio, watching movie, chatting online, etc. Supports hands-free function, conveniently answer the incoming call during travel. Low power consumption, bring you 8 hours of talking time, 8 hours of music playing time and 120 hours of standby time. High-quality, foldable design and adjustable headband length, very comfortable to wear and easy to carry. With built-in high-quality rechargeable Li-ion Battery, and easily charged by the included USB cable via computer, etc.