Mini Invisible Ture Wireless Earphone Noise Cancelling Bluetooth Headphone Handsfree Stereo Headset TWS Earbud With Microphone

High-concerned chemical : None Material : Plastic NFC Technology : no Category : Earphones & Headphones Charging Method : cable Bluetooth Version : 4.1 Package List : User Manual,charger Features : With microphone Codecs : AAC With Microphone : Yes Is wireless : Yes Support APP : No Waterproof : No Line Length : 0m Sensitivity : 120±3dBdB Function : Monitor Headphone,For Mobile Phone,HiFi Headphone Active Noise-Cancellation : Yes Volume Control : No Control Button : Yes Vocalism Principle : Dynamic Wireless Type : Bluetooth Connectors : None Communication : WireLess Style : Wired in-ear headphones Certification : NONE Origin : Mainland China Resistance : 32 Support Memory Card : No