[. . . ] [. . . ] Sensitivity: 114dB ±2 dB at F=1KHz Frequency Response:20Hz~20KHz
HP- 080
1. Features
This item is suitable for any audio devices. (Switch on the noise cancelling function when you are in noisy envoirnment)
5. Working condition
Working temperature: -10~60, working humidity:20%~90% When use this item, try to avoid overloading signal input, operate it in the range of the power input extension.
6. Problem and Solution
Problem Causes Solutions
2. Parts Introduction
Noise cancelling Doesn't mount battery or reverse function doesn't work the polarities, battery run out of , or the power is lower
Replace the old battery with new one , meanwhile mount the battery according to the engraved polarities .
3. User's Manual
Mount 2 x AAA batteries in the battery case. Connect the audio device with the headphone, adjust the volume properly, you will sense that noise outside is decreased a lot. Try to avoid touching this item with sharp object in order not to influence the appearance. [. . . ] [. . . ]