FIVE EQ MODES FOR RICHER EXPERIENCE: Volume-optimized EQ gives you a consistent, balanced performance. Match your music with Rock, Pop, Classic,Jazz,Country and Natural styles. | BUILT TO STAY COMFORTABLE: The Memory-protein ear cushion simulate human skin texture, ensuring lasting comfort. Perfect cover ears, the sound of isolation from the outside world, let you better enjoy your journey of music. | NEVER POWER OFF, BOTH WIRELESS & WIRED: 1. The wireless mode: Battery update to 20-hr music time/ 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. | POWERFUL COMPATIBLE & BUILT-IN MIC: Please Note: The Microphone works both in wireless /wired mode. Riwbox Bluetooth headphones provide a quick and stable connection with your Bluetooth enabled devices like ipad,iphone.ipod touch, Android smart phones,tablets, pc, TVs within 33 feet, with a high-quality built-in microphone and support SD card for hands-free calls. | FOLDABLE DESIGN& GENTLE REMINDER : Space-saving foldable design not only saves space but also makes it portable. Riwbox Bluetooth headphone WB5 fit the modern city lifestyle for everybody, no matter you are office worker or student, teenager or girls.