FeaturesHiFi Powerful Bass Stereo Sound Effect: 40mm diaphragm speaker drivers, deep bass stereo sound, enjoy the wireless high quality musicComfortable Over-Ear Fit: Soft protein leather earpad and retractable headband lifts the burdens for your ear. No discomfort after long-time wearing.Comfortable and Foldable: Technical ergonomics design with soft earmuffs simulated to human skin texture, ensure long lasting comfortWireless and Lightweight: Ear Pad headphones for enjoying extended listening of TV and audiowithout disturbing othersBuilt in Microphone: supports hands-free call and voice reporting incoming call number. With the latest enhanced technology makes you voice sound clearer in noisy environmentsEver Power Off, Both Wireless Wired: 1. The wireless mode: A built-in 400mAh battery provides up to 10-hr music time or talking time in a single charge; 2. The Wired mode: you can also use it as a wired headphone with the provided audio cable so the headphones will never power off.Bt Adopt: The Bt CSR Chipset, lower power consumption, superior compatibility. Compatible for all the mobile Phone, Tablet PC, Notebook, any devices with bt function Or has A 3.5mm Audio JackMulti-Functions: headsets have several options for listening enjoyment. Built in TF card slot and you can use a TF/Micro SD card with loaded MP3 music and listen to the songs directly on your headsets.Colorful LED Light: Seven-color transform cool breathing light, shine everywhere, anytime.