X2 Foldable Stereo Headphones-An art from GranVela 1. GranVela X2 Foldable Stereo Headphones has Fashion contracted design, has 10 kinds of color can be chosen. Not only the Superior Design, but the great feature it has. X2 Headphone which is a easy carry and good looking headsets. It is very convenience to operate, the perfect partner for your mobile phone. 2. It has the Volume Control in the headphone right. Support Micro SD(TF) Card,FM Radio,etc. At the end of the plug, we have a standard 3.5mm jack that has a chunky enclosure, so you can plugging these headphones into other portable players. 3. Environmental ABS+PU material design,Using portable folding design(Weight only 135g ). The earmuffs part using leather materials ,bring you a better wear feelings and sound isolation. Large Angle of rotation make sure that it can more fit your wear it .What's more, headphone's handle design take advantage of Old pilot headset's Dual Rail Tie Rod Structure Design. Add the retro element to more highlighted its edgy appearance. 4.40 mm neodymium drivers Looking to enjoy richer, more detailed sound from your headset Ultra-compact yet incredibly strong, our 40-mm neodymium drivers generate an incredibly powerful magnetic field. The impressive end results are subtler vocal shadings and richer bass responses that add unexpected new dimensions to tunes you thought you knew inside out. Specification: Frequency response:20-20,00Hz Speaker impedance:32ohm Sensibility:108+/-3dB Charging time: about 2-3 hr. Charging port: USB cable. Music time: 8hr. Talk time: 6hr. Standby time: 300hr. Frequency Response: 2.4-2.483G Hz. Package list: 1 * Headset 1 * USB Cable 1 * User Manual. Warranty: -30 day hassle-free money back guarantee. -12-months Warranty. That's Why We Provide,Quality first is our tenet !!