Vocalism Principle : Dynamic

Certification : CE

Style : Neckband

Number Of Drivers : 2

Brand Name : Lenovo

Volume Control : Yes

Active Noise-Cancellation : Yes

Communication : True Wireless

Control Button : Yes

Origin : Mainland China

Model Number : X4

Resistance : 16Ω

Impedance Range : up to 32 Ω

Is wireless : Yes

Plug Type : NONE

Line Length : 0m

Waterproof : Yes

Wireless Type : bluetooth

Frequency Response Range : 20 - 20000Hz

Support Memory Card : No

Connectors : USB

Bluetooth Version : 5.0

Charging Method : Cable

Support APP : No

Function : for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport

With Microphone : Yes