Wireless Invisible Blue Tooth Call Sleep Headphone Side Sleep No Pressure Ear Vibration Massage Instrument Decompression Tool

High-concerned chemical : None Material : Plastic NFC Technology : No Sound Isolating : Yes Category : Earphones & Headphones Charging Method : Charging case Bluetooth Version : Other Package List : Charging case Features : With microphone,Active Noice Cancelling Codecs : None With Microphone : Yes Is wireless : Yes Support APP : No Waterproof : No Line Length : 0m Plug Type : None Function : For Mobile Phone,HiFi Headphone,Common Headphone,For Office,For Outdoor,Sport,For Study,For Sleep Active Noise-Cancellation : Yes Volume Control : Yes Control Button : Yes Vocalism Principle : Dynamic Wireless Type : Bluetooth Connectors : None Communication : WireLess Style : Tws in-ear headphones Certification : CE Origin : Mainland China Brand Name : JZWXM