Wired is passe. With Rockerz 600 KKR, connect to any Bluetooth device and enjoy immersive audio experience. It is designed to play up to 8 hours of nonstop audio time in a go with a High Definition Sound. Dont just be loud, be loud and clear. Get ready to listen to powerful bass and vocal clarity from a wireless headphone with comfy and plush Earcushions. Rockerz 600 KKR will make your listening experience personal and for real. With its easy access integrated controls, access playback, calls and smart voice assistant with ease. Plug it in and Plug into Nirvana