HIGH FIDELITY AUDIO - Uliptz Bluetooth headphones deliver crystal crisp highs, balanced mids and powerful bass through 40mm acoustic stereo drivers. Equipped with 6 EQ modes, switch according to different music the balanced sound. You can enjoy high-quality crystal clear stereo sound with our over-ear headphones. | STRONG BLUETOOTH 5.3 TECH - The wireless Bluetooth headphones are compatible with all Bluetooth-enabled devices. Advanced Bluetooth 5.2 technology provides a more stable, faster Bluetooth connection and can be paired with two devices at once and seamlessly switch between them - meaning you can quickly switch from listening to a playlist on your phone to taking a conference call on your laptop. | UP TO 65 HOURS PLAYTIME - Uliptz wireless headphones deliver up to 65 hours playtime on a single charge. A quick 10-minute charge gives you up to 4 hours of playtime. This wireless headset can also easily connect to other non-Bluetooth devices via a 3.5 mm audio cable, plug in the included audio cable to listen for even longer in wired mode. | LIGHTWEIGHT COMFORT - The ear cups are made of acoustically engineered memory foam that provides pillow-like softness while listening. Adjustable metal slider headband and rotatable earmuffs can easily fit any head shape. No matter whether you are doing online class, travel or workout, you’ll almost forget you’re wearing them-- even after hours of listening. | CLEAR CONVERSATIONS - Bluetooth headset with built-in microphone has clear voice effect, compatible with smartphones for hands-free calling and use with voice assistants. [Note: Microphone works in wireless/Bluetooth mode only]-- 30 days free return and 12 months warranty is our guarantee, please feel free to contact us if you have any inquiries during use.