Description: Eliminate noise: when using a compatible Bluetooth receiver, the noise caused by the ground loop is eliminated when sourced; sound. Noise reduction: A noise isolator works by providing clear speech or music and eliminating the noise present in some; car speakers and home stereo systems. Compatible Models: For any portable device with a 3.5mm audio jack, when there are still grounding problems, you can use it for a compatible Bluetooth receiver or hands-free; car audio or home stereo. Compact: This adapter is compact and lightweight, which; It does not take up too much space and can be easily moved. ABS Material: Splinter; The insulator above ground adopts premium ABS material, which It is durable and solid, not easy to break. Specification: Material: ABS. Color: As shown. Cable length: about 21cm. Size: Approx. 5.2 x 1.5 x 1.5 cm / 2.04 x 0.59 x 0.59 inches. At