User Manual

Audio muting

1) The master volume is not large;

2) the input audio signal is normal.

The microphone

is silent

1) microphone is normal;

2) the microphone volume is not large;

3) whether the microphone dynamic

microphone;

4) microphone is plugged.

Sound quality is

poor

1) microphone quality is not good;

2) Input audio sound quality is not good;

3) antenna installation method is not

correct;

4) audio signal or machine volume is not

adjusted.

10. After-sales Service：

Thank you for choosing our product, we’ll provide lifetime maintenance.

Within 200days after purchasing, we provide all-free repairing. The following

circumstances are excluded:

1) Problems caused by unauthorized disassembling or repairing on the

product.

2) Problems caused by mis-operation without following the instruction.

3) Problems caused by man-made damage/hit/crash/water and other

non-product quality problems.

4). The product being damaged by Thunder or other force majeure.

5). Product case, Li-on battery, microphone, charger, audio cable, charging

cable and other accessories are not in free repairing range.

For products over or not belonging to the free-repairing period, we can provide

repairing with very low cost.

1) We provide lifetime maintenance for product over the free-repairing period.

2) We can repair the products that over the free-repairing period or

damaged manmade with very low cost.

11. Disclaimer