Introduction:Comfort is the top priority here - earpads are made of smooth and soft leather that greatly contribute to their elasticity so they don't sit too tightly on the ears - you can wear them for hours and even days at a stretch.Exceptional noise cancelling feature， which imparts brilliant clarity to the sound and strong low bass. The sound is enhanced even more due to the 40 mm magnetic driver units embedded inside the headphones.Ergonomic design with sturdy and durable outer plastic shell that provides excellent air permeability - the headband is extremely flexible， as it can be stretched and rotated up to 90 degree as per your convenience.3LED lights color follow the music ups and downs at ear-pad two sides，fashion design. Best sound quality. Clear and transparent bass， mids and highsThe folding design and lightweight structure makes them portable and great space-savers while traveling.Features:1)3LED lights color follow the music ups and downs at ear-pad two sides，fashion design. Best sound quality. Clear and transparent bass， mids and highs2)Foldable Headset is easy to carry，adjustable PU leather headband for perfect fit.3)Control your music player directly from the headset with functions such as play， pause， next & previous track， and volume4)Built-in rechargeable Li-battery，2 hours charging time，play time after full charged:8-10hours5)Compatible with Bluetooth enabled music players & A2DP enabled devices such as iPad， iPhone， iPod touch， Android Smart Phones， tablets， etc6)support TF card，with FM radio function， enjoy the channels you want.Specifications:Bluetooth protocol version：Bluetooth V3.0Transmission Distance: ≥33 ftWireless carrier frequency：2．402~2.480MHzSpeaker (Driver diameter):40mmDC Resistance: -90dBSensitivity: -90dBFrequency response：20HZ-20KHZUSB Interface: 2.0Rated Power:20mWBattery:300mACharging time:2hourPackage:1 x EXCELVAN Bluetooth headset1 x USB cable 1 x Instructions manual