Olaf Bone Conduction Wireless Bluetooth Headphones Surround Sound

Number Of Drivers : 2 Charging Method : Cable Headphone Pads Material : Other Magnet Type : Other Impedance Range : up to 32 Bluetooth Version : 5.1 Package List : Charging Cable With Microphone : Yes Is wireless : Yes Support APP : No Support Memory Card : No Frequency Response Range : 20 - 20000Hz Sensitivity : 42dB Plug Type : NONE e Noise-Cancellation : Yes Volume Control : Yes Control Button : Yes Vocalism Principle : Dynamic Wireless Type : bluetooth Communication : Wireless Style : Neckband Certification : CE,FCC Origin : Mainland China Brand Name : olaf