1.Hanging ear design is not easy to fall off. 2.Waterproof, effectively prevents sweat from damaging components. 3.High capacity battery has lasting endurance. Ultra lightweight, convenient to carry and wear. 4.Built-in BT chip has stronger and more stable transmission speed, lower Power consumption, and more powerful performance. Style:Neckband Communication:Wireless Connectors:None Wireless Type:Bluetooth Vocalism Principle:Bone Conduction Control Button:Yes Volume Control:No Active Noise-Cancellation:No Function:Common Headphone,Sport Plug Type:Line Type Sensitivity:120±5dB Frequency Response Range:200-4000Hz Line Length:Other Resistance:32Ω Waterproof:Yes Model Number: Support Memory Card:No Support APP:No Is wireless:Yes With Microphone:Yes Codecs:None Features:With microphone Package List:User Manual,Charging Cable Bluetooth Version:5.0 Total Harmonic Distortion: Driver Diameter: Magnet Type:Other Headphone Pads Material:Other Charging Method:Cable Number Of Drivers: Max Output: Earcups Type:Open-back Impedance Range:up to 32 Ω Origin:CN(Origin) Certification:CE Earphone X 1 *************** We will ship within 24 hours of your payment! ! ! Our advantage: Our products are 100% original We are a large-scale trader in China Have the agency sales rights for many brands. Have more competitive prices. For local merchants who need wholesale, please contact customer service. We will provide preferential prices and quicker sales plans for large quantities of customers.