Dear customers, after purchase, if there is any problem, malfunction, error, etc. with our products, please contact us through the free market order information. We will reply you and solve your problem as soon as possible!Features: [Bone Conduction Design] The design of bone conduction is used to fit the human ear canal. It is not painful to wear and does not fall off easily.[Intelligent Noise Cancellation] The wireless headset is designed with intelligent noise cancellation, which can intelligently filter noise and make calls clearer.[Bluetooth compatible connection] Using Bluetooth compatible 5.2 connection design, no sense of delay, lower power consumption, no lag in connection.[Digital Display] LED intelligent digital display design, can display power, power at a glance, no need to worry about running out of power.[Rechargeable Battery] Built-in high-capacity rechargeable battery design, can use USB socket, computer, etc. for charging, convenient and fast.[Applicable occasions] With a wide range of use scenarios, suitable for sports, running, safe driving, express, fitness, business office, etc.SpecificationMaterial: plasticColor: BlackPackage includes1 wireless headset1 pair of ear caps1 data cable1 storage boxWireless Headphones,bluetooth headphones,Caution 1. The color of the item may be slightly different from the picture due to the difference in light and screen.2. Please allow 0.5-2 cm difference due to manual measurement.