Description
1. Hum elimination: eliminates hum noise caused by ground loops when the audio source and (some car speakers/home audio systems) use the same power supply, resulting in clear music enjoyment, and the excitement blooms from there
2. Pure sound quality: no damage of rock music, give you a better experience, can be used on mono
3. Easy to use, just plug and play, no battery required
4. Small and portable, this gadget does not take up much space and is easy to take away
Unable to eliminate noise problems:
Noise caused by non-common ground cannot be filtered by this model, such as electromagnetic interference, etc. Be sure to confirm the source of the noise before purchasing
Because everyone has different expectations for the isolation effect and has different senses, some customers think it is good, and some customers think it is not good
This product is an audio common ground isolator, which is effective for the noise caused by the common ground between the audio source and the receiving device
To put it simply, the common ground means that the grounding points of the two electrical appliances are not at the same point. Due to the difference in grounding resistance, the noise is transmitted into the electrical equipment through the ground wire, forming interference. Because the grounding points of the two devices are different, common ground noise may be generated. It is manifested in the car audio, that is, there is a kind of audio interference, a humming sound similar to whistling. The frequency of this noise will change with the engine speed.
Therefore, this product can only eliminate noise and current noise caused by products with common electricity and common ground, but cannot eliminate noise caused by other reasons, so you need to confirm the source of the noise yourself
Determine whether the noise is caused by a common ground:
1. Use earphones to connect to the AUX (3.5mm interface) of the car MP3 and car navigation. If there is no noise from the earphones, it can be confirmed that the noise of the car equipment is caused by the common ground
2. Use an audio cable to connect the battery-powered mobile phone or MP3 (note that the mobile phone and MP3 should not be connected to any power source on the car, such as a telephone) to the AUX on the center console of the car, and play the music of the mobile phone, so that there is no noise at this time , it can be confirmed that the noise in the past was caused by the common ground
3. Computer, power amplifier, stereo, CD: Use passive headphones to plug in the computer to test whether there is noise, use a mobile phone to plug in the power amplifier and stereo to test, if there is no noise in the two listening separately, the basic judgment is caused by common ground
4. After starting the car, the installed power amplifier has a current sound, and some models may also have a situation where the greater the accelerator, the greater the current sound. This product can solve this problem.
5. If there is a current sound between the power amplifier and the speaker or the speaker, this product can be installed between the power amplifier and the speaker.
6. When the notebook computer is connected to the projector and connected to the power amplifier at the same time, there is noise. You can connect the notebook to the adapter power supply or use the battery. At this time, the noise disappears when the power amplifier is unplugged, or the noise disappears when the projector is unplugged. Then you can connect the computer’s headphone jack and power amplifier. A common ground isolator is added between them to eliminate noise
Shipping
Shipping policy
We offer fast and reliable shipping for all our clothing items. Orders are processed within 2-3 business days and shipped via standard delivery, which typically takes 8-25 business days.
Express shipping options are also available at checkout for an additional fee, ensuring your fashion essentials arrive even sooner. For any questions regarding your order, please contact our customer service team for assistance.
| Shipping from Chinese Warehouse： | ||
| Airmail and register airmail | Area | time |
| United States, Canada, Netherlands, Spain, Germany, France, Japan, Republic of Korea, United Kingdom | 7-15 business days | |
|
Australia ,New Zealand, Singapore |
7-15 business days | |
| Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland | 7-20 business days | |
| Brazil, Russia, Mexico | 15-35 business days | |
| Other countries | 7-25 business days | |
| EMS | All countries except those listed below | 6-8 business days |
| Brazil and Russia | 10-25 business days | |
| Expedited Shipping*(DHL) | 3-7business days to worldwide. | 3-7 business days |
Return & Refund
Refund policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at support@reluova.com. Please note that returns will need to be sent to the following address:
T8 BLOCK ROOM312,XINGHUA SMART ZOOM,DONG CHENG STREET,DONGGUAN,DONGGUAN,CHINA,523000,+86 137 9069 5247
If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at support@reluova.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Provided the conditions in our refund policy have been met, refunds will be processed using the original form of payment. You can return an item purchased online by posting it to us. Please contact customer service for return address. Please note that delivery costs will be excluded from the refund unless goods are returned in accordance with your statutory rights (e.g. they are faulty or not as ordered).
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