Control Button : No
Active Noise-Cancellation : No
Style : Ear Hook
Wireless Type : None
Connectors : 3.5mm/0.14"
Communication : Wired
Vocalism Principle : Dynamic
Volume Control : No
Frequency Response Range : 20-20000Hz
Function : HiFi Headphone
Function : Common Headphone
Function : For Mobile Phone
Sensitivity : 98dB
Is wireless : No
Plug Type : Line Type
Support Memory Card : No
With Microphone : No
Model Number : L21
Waterproof : No
Line Length : 1.2m/3.9ft
Support APP : No

package included ； 1 pc

If you are unsatisfied with your item for any reason, return it within 30 days of delivery.