Wireless earphones with sound conduction, built-in 150mAh large battery, provide you with battery life guarantee anytime, anywhere. Intelligent active noise reduction, reducing surrounding noise and making calls clearer. Every time the Bluetooth earphones are connected to the phone, they will automatically reconnect to the phone when turned on, making it convenient and fast.Smart compatibility: supports all mobile phones, tablets, laptops, and devices with Bluetooth compatibilityYou can simultaneously connect Bluetooth compatible devices and switch between listening to music, playing games, and making calls at any time.Strictly waterproof to prevent sweat and dust from corroding components. High quality call listening experience with extended battery life, stable connection, no need to worry about running out of battery. Sound conduction in car hands-free business earphones with microphoneOpen ear design: This earphone features a non in ear design, so you don't need to wear it on your ears, making you feel more comfortable and painless. You can always pay attention to the environment, which is relaxed and safer.Wireless: Bluetooth compatible V5.1 ensures stable connection and fast transmission, reduces latency, and provides you with a good listening experience.Flexibility: You can easily store headphones by bending or folding them, which are not easily deformed or broken because they are made of alloy and are sturdy and durable.IPX5 Waterproof: This earphone can effectively waterproof and sweat proof, suitable for sports, running, fitness, etc. You can wipe it dry, saving you effort.Noise reduction: Equipped with a microphone, it allows you to easily answer calls, maintain clear sound and voice, and free up your hands, making it suitable for driving and workingSound conduction black technology: Sound conduction technology, which transmits sound to the auditory nerve through the skull and jawbones, with rich low-frequency, delicate mid-frequency, and high-frequency penetration