4 in 1 Multifunctional: Adopting Bluetooth 4.1 Wireless Technology + 3.5mm audio jack(provides a simple wired connection of a variety of music players, such as, MP3 / MP4, etc. without Bluetooth function devices) +FM Radio Module +Wired Headset function.
Light and Portable, folding and adjustable headband length design.
Adopt Built-in DSP Noise Canceling Technology and high-sensitivity microphone to reduces ambient noises and grasp the detail of voice.