[DURABLE AND LONG BATTERY LIFE] Seflorgo headset is well-made, feels sturdy and not easy to break. Bluetooth headphones with microphone built-in high-capacity 150mAh rechargeable Li-ion battery, Type-C USB fast charging about 1.5 hours, standby time up to 200 hours and up to 12 hours of work. IPX5-rated waterproofing protects against rain and perspiration and extends battery life. (Note: It only protects against small amounts of sweat and rain and is not recommended for swimming!). [WIRELESS HEADSET FOR WORK AND LEISURE] Bluetooth headphones wireless uses advanced Bluetooth 5.3 chip widely compatible with phone/PC/computer/laptop/tablet/iPad, etc.. Fast pairing and stable connection, it supports simultaneous connection of two devices and automatic reconnection! It not only is the perfect partner for office, conference, video, truck driver, online teaching/learning, call center, home work, but is perfect for people who enjoy sports, running, biking, hiking, skiing, snowboarding, fitness!. [LIGHTWEIGHT AND COMFORTABLE ALL DAY] The wireless headset lightweight and ergonomic design ensures comfort all day long without ear ache. Silicone ear hooks and ear cushions make both sides flexibly attached, very balanced and stable so you won't have to worry about falling off; 360° non-deformable memory steel wire headband won't leave marks in your hair; weighing only 28g, it's super lightweight and won't compress your ears or interfere with your glasses, you'll almost forget you're wearing it. [DETACHABLE MAGNETIC MIC WITH NOISE-CANCELING] Bluetooth headset features DSP noise-canceling technology ability minimizes background noise in noisy environments, allowing you to stay focused and undisturbed. Magnetic microphone attaches and detaches easily, plug and play, 360° rotatable boom mic play efficiently picks up your voice and ensures clear communication during calls. Bluetooth headphones has a built-in microphone, so you can still talk with the microphone boom removed!. [OPEN-EAR AIR-CONDUCTION-HEALTHY AND SAFE] Open-ear air conduction headphones are healthier and safer! It does not cover the whole ear, nor does it insert into the ear canal, which not only keeps the ear canal clean and dry, but also allows you to be aware of your surroundings and increase alertness. The air conduction technology does not impede air circulation and prevents sweaty ear infections. Open-ear design enjoy the music while talking freely with your companions!.