The wireless headphones are compatible with almost all of phones, tablets and laptop with Bluetooth function. | Touch button to control functions: Volume up/down, receive/decline/hang up phone call, play/pause music, previous/next song, etc. | When opening the charging case, the Bluetooth headphones automatically matching. | IPX5 grade waterproof design enables the earphones to resist sweat generated during your sport and other water splash. | Warranty Information 30 Days Warranty (Please preserve your box to claim warranty) | HiFi sound quality allows you to enjoy stereo music.