Check the listing for details. RCA Noise Filter Hum Eliminator Ground Loop Isolator (No Affect Bass) Quality.... Color: Black, Condition: New. Listed at 51.99 USD. Brand New RCA Noise Filter Hum Eliminator Ground Loop Isolator (No Affect Bass) Quality Isolator for HIFI Stereo Home Theater Car Audio Player (Black) Manufacturer model: WD-GL001B2 1. WisWinDa RCA Ground Loop Isolator/Noise Filter RCA No Reduce Bass and could help you to reduce the noise from the car&home audio electric system, gives you HiFi quality sound output. Perfectly solve car and home stereo noise problems.2. Hum/Buzz Eliminator have high quality A BS Fireproof shell, sturdy and resist, which has long durability.3. Plug&Play Design--The Audio Isolation Transformer Alternator is easy to install, dont need any complicated tools, and it can be used after correct connecting RCA and cable White and Red. Kind remind please confirm whether the product is suitable before buying.4. HiFi Performance--The Ground Loop Audio Noise Eliminator could work with car stereo, amplifiers, speakers or mixers, with stable performance, high precision and good reliability. Let you eliminate car speakers / home stereo systems humming sound away and enjoy a perfect sound.5. Wide Application-- Audio Noise Isolator Filter for Eliminating ground loop noise between the audio source and radio. Used for portable devices that have RCA audio outputs Home Stereo Speakers Amplifier Equalizer ect. Description Shipping and Handling Please allow 5-7 business days for the package to arrive, regardless of buyer location within the US. We will provide an online tracking number to you once the item has been shipped. It may take a few business days for our automated system to process the tracking number onto eBay. However, this will not affect the shipping times. Return Policy All our products are brand new and sealed. All items qualify for returns within 30 days of receipt. Feedback We take our reputation seriously. If you have any questions or concerns, please contact us and we will respond back to your message within 24 hours.