Enjoy a Perfect Music Experience with This Active Noise Cancelling Cordless Headphones. the Folding Headphones Will Eliminate All the Surrounding Environment Noises to Make the Music Sound Even More Clear Transparent & Powerful. the ABS Headphones has an Around-Ear Fit for Optimal Wearing Comfort. the 250 Mah Battery Will Allow You to Play Music for Up to 5 Hours on One Single Charge. Perfect for Commuting to Work, at Home or for When You Need to Focus in the Office. Re-Charging Time: 3 Hours with Bt 5.0 Which Allows an Operating Distance Up to 10 Metres. with Microphone & Pick Up Function to Answer Calls. Anc Degree: 20 Db. Anc Function Can be Switched on & Off. Including Aux Port to Use Via Wire (Not Included) Minimum Quantities Apply.