Bluetooth 5.3 Open Type Non In Ear Directional Sound Transmission Intelligent Button Ultra Long Range Wireless Earphones Features: Bluetooth 5.3 chipThis earphone adopts a low-power Bluetooth 5.3 chip, which can transmit longer and faster distances, has a wider range of sound, and can bring a fast experience. Non in ear designNot in the ear canal. Wearing it for long periods of exercise will not cause swelling or soreness, and excessive sweating will not cause problems caused by ear canal blockage. Targeted Sound TransmissionThis earphone has upgraded DT4.0 directional sound transmission technology, which detects ear canal changes and efficiently delivers directional sound waves into the ear, reducing sound leakage by 90% High definition audio analysisThis Bluetooth earphone is equipped with a 14mm large-sized speaker unit, which is clear and transparent at high frequencies, and full at mid to low configurations, mastering various music styles. Super Long RangeThis Bluetooth earphone uses a polymer battery, which has a longer battery life and can listen continuously for 48 hours. With long-lasting battery life and fast charging, it can be used for a longer time. Product Description: Product Name: Bluetooth Earphones Product colors: black Product material: ABS Bluetooth version:5.3 Transmission range: 15m Listening time:48 hours Package size:14.610.63.6cm/5.74.21.4in Package weight:115g/0.25lb Product List: 1 x instruction manual 1 x Bluetooth earphones 1 x charging cable