Description: Adopted Bluetooth 5.0 technology, it provides fast and stable pairing with any iOS and Android smart phones, tablets, laptops, MP3 players from up to 33 feet away. Metal cavity design, built in highly analytical decoder acoustics division specially tuned the front cavity air hole to improve low frequency and reduce sound effects, offering crystal clear audio and natural sound, allowing you to enjoy high quality music and clear phone calls wherever. Easy-to-reach buttons, quick to answer the calls, play or stop the music, also it support voice assistants. Voice alerts battery level, connection status, mute/unmute status let you enjoy real hands-free. 180 Deggree rotatable earpiece fits perfectly for your left or right ear. Lightweight, it does not cause any burden to your ears, providing lasting wearing comfort, good for drivers or businessmen. Extendable earhook for easy wearing on a wide range of ear shapes. 40 Hours long battery life for music and call, compatible for IOS/Android cell phones, PC, Laptop and other Bluetooth-enabled devices. Specification: Material: Plastic Electronic components Bluetooth Version: Bluetooth V5.0 Bluetooth Range: ≤10m Earpiece Battery Capacity: 200mAh Play Time: 40H Weight: 160g Size Chart: 107x87x36mm/4.21x3.43x1.42inch Package Includes: 1 Piece Bluetooth Earpiece 1 Piece Charging Cable 1 Pair Ear Caps Note: Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!