Brand Name: Lenovo
Style: Ear Hook
Certification: CE,FCC,RoHS
Vocalism Principle: Bone Conduction
Origin: Mainland China
Control Button: Yes
Active Noise-Cancellation: No
Communication: True Wireless
Volume Control: Yes
Sensitivity: 36dB
Wireless Type: bluetooth
Is wireless: Yes
Max Output: 400mW
Support APP: No
Function: Common Headphone,For Mobile Phone,HiFi Headphone,Sport
Number Of Drivers: 0
Plug Type: Line Type
Package List: User Manual,Charging Cable
Impedance Range: up to 32 Ω
Connectors: USB
Model Number: X4
Earcups Type: Semi-open
Headphone Pads Material: Other
Bluetooth Version: 5.0
Support Memory Card: No
Driver Diameter: 0mm
Resistance: 20Ω
Waterproof: Yes
Frequency Response Range: 10 - 2000Hz
Total Harmonic Distortion: 0.5%
With Microphone: Yes
Features: waterproof,With Microphone
Charging Method: Cable
Magnet Type: Other