This part was exactly what I was looking for. It combines a 1/8" TRS (stereo) signal into a single (mono) RCA signal. I used this on my Nascar scanner headphone jack to connect to a portable recording device with an RCA cable.
Monoprice also had a quick delivery and reasonable shipping charges. $2 regular USPS mail for $2 in connectors is a reasonable shipping charge (not like other places who ding you with a $6 UPS delivery for a 1 oz package).
PROS: Quick delivery at a very reasonable cost. Finally, a mail order place that uses USPS regular mail. $2 shipping for $2 worth of connectors is a reasonable shipping charge.
This little piece of marvel makes it perfect for hooking up an mp3 player or music reproduction device to any speaker system. The plastic grip is the weakest part due to its durability. It may last 20 years, or it may last 1 year, depending on the heat it takes from the equipment it is hooked on to.
PROS: Super economic, gold plated, tight fit for excellent connection
CONS: The black plastic grip could be a little better in terms of durability