Air Conduction Open Ear Headphones - Open-ear design: open-ear air-conduction headphones do not insert into the ear canal or cover the ears. This design helps keep the ear canal clean, reduces ear fatigue, and lets you stay aware of your surroundings for safety. - Detachable noise cancelling microphone: equipped with DSP noise reduction for clear calls and a better listening experience. The detachable boom is magnetically designed and can rotate 360 degrees to optimize sound pickup and call quality. The 15.4 mm driver speaker delivers clearer, louder sound. - All-day comfort: ergonomically designed for long wear. The ear hook is made of silicone, skin-friendly and comfortable, providing a secure fit that stays in place without moving or bouncing. The 360-degree bendable memory wire can be shaped as needed without breaking, making the headset easy to carry around the neck when not in use. - Advanced Bluetooth 5.4 stable connection: features an advanced Bluetooth 5.4 chip for fast signal transmission and stable connection, with a range of up to 33 feet (10 meters). Automatically reconnects to the last connected device. Supports dual-device pairing to reduce missed calls. Widely compatible with phones, PCs, computers, laptops, tablets, and more. - IPX5 for sports: IPX5 waterproof rating makes these open-ear headphones suitable for sports and outdoor activities such as running, cycling, hiking, skiing, snowboarding, and exercising. They are also useful for office, conferences, truck drivers, online teaching/learning, call centers, and homework. Note: they protect against light sweat and rain but are not recommended for swimming. - Long battery life and convenient controls: built-in 150 mAh rechargeable Li-ion battery provides long standby and playback performance. Up to 150 hours of standby time and about 12 hours of continuous music or calls. Type-C USB fast charging takes about 1.5 hours. Multi-function buttons support power on/off, play/pause, activate voice assistant, switch music or game modes, and answer/hang up/reject/replay calls.