🎧【Up to 65 Hours of Playtime】: With up to 65 hours of listening time of our over ear headphones in bluetooth mode, triple as much as other bluetooth headphones, you'll always have music to inspire you. Come with a 3.5mm audio cable, regardless of whether you want to use wireless headset or wired headphones, RUNOLIM Bluetooth headsets could satisfy you. 🎧【HiFi Stereo Headphones】: With high definition stereo headphones, and advanced bluetooth 5.3 chip, our foldable headphones aim to deliver you superior sound quality with high fidelity deep bass and crystal clear treble, lose yourself in immersive music even in the lowest volume levels! The goal that provide customers with outstanding sound quality is our constant pursuit. 🎧【Optimized Sound Quality with 6 EQ Modes】: RUNOLIM is always up to date for better sound effects and a better listening experience. A big step that RUNOLIM has taken: RUNOLIM Headphones Wireless Bluetooth have 6 EQ modes with which you can freely switch between Pop/Rock/Vocal/Jazz/Bass/Classic sound. Each mode provides you with the CD quality sound. 🎧【Bluetooth 5.3 & Built-in Microphone】: With two 40mm large bezel driver units and Bluetooth 5.3 technology, these headphones bluetooth offer more stable transmission speed, lower latency and better audio output. The headphones can give you wonderful music enjoyment and the built-in microphone of the bluetooth headphones enables a hands-free clear phone communication. 🎧【Comfortable and Foldable Design】：Ultra-soft ear cushions and padded headband provide you a fatigue-free listening experience even wearing these over-ear headphones during a long session. They are foldable and adjustable, which make sure that the ear is snug around your ears for a better sound experience and immersed in the full sound. RUNOLIM is the best choice for home, office, school, travel, and sport.