How much does this cost to the nearest dollar?

ZIOCOM Ground Loop Noise Isolator, RCA Audio Noise Filter for Car Audio/Home Stereo System, Portable and Lightweight, Ground Loop Isolator with Dual Channel(Black)
Eliminate noise The noise filter can eliminate the hum/low frequency noise/static noise from your automobile audio system/home stereo/speaker immediately, and provides clear and clean music for you. High quality materials and lightweight ZIOCOM RCA audio filter is made of high quality plastic, which is lightweight and durable.It doesn't take up much space and can be easily carried. Simple operation Firstly, plug this ground loop isolator into the car/speaker RCA port, then plug the RCA cable into the audio source. You will see the change at moment! It solves the noise problem! This noise filter does not require charging and does not

Price is $17.00
Price: $16.99