The Green Lion Brussels Air Conduction Earphones in Black offer exceptional sound quality and comfort for all-day listening. The earphones use memory titanium alloy materials, which enable them to create a shape-memory design that provides users with a comfortable ear fit that prevents pain. Bluetooth V6.0 provides stable and reliable connectivity, which enables users to move freely while listening to music or taking phone calls from a distance of 10 meters. The 14mm speaker delivers clear audio for phone calls, while IPX5 waterproofing protects the device from both sweat and light rainfall, which makes it suitable for outdoor activities. The earphones deliver extended usage through their 13 hours of playback time and 10 hours of talk time, which operate on a 75mAh battery. The USB-C charging port enables users to achieve fast charging within 1.5 hours, while the dual-device connectivity feature allows users to connect two devices at the same time. The Green Lion Brussels Air Conduction Earphones provide users with both high-quality sound and a comfortable listening experience.