If you are looking for a utilitarian RF-wireless pair of headphones, the RCA WHP141B (900MHZ) are available in “Used – Like New” condition for under $18 by Amazon Warehouse Deals. They average 3.5 out of 5 based on 1700+ customer reviews.

Amazon Warehouse Deals is building up inventory on the used RCA WHP-141-B RF Wireless headphones. There are multiple used listings, with the prices ranging from $16.50 to $19.25 depending on condition. With multiple listings, the chances of prices dropping further down are higher (unless of course they are getting bought up at a satisfactory rate (to the computer that decides the prices)).

These are perhaps best suited for utilitarian listening, not for dedicated music appreciation type of listing. They average 3.5 out of 5 based on nearly 1700 customer reviews.

A quick trip at Amazon Warehouse Deals has a few more offers, starting with the RF Wireless (900 MHz) RCA WHP141B headphones going for $19 in “Used – Acceptable” condition at Amazon Warehouse Deals. These have been around for a while and have amassed over 1600 customer reviews with a 3.5 out of 5. They have issues and trade-offs, so be sure to consider them before buying. One of the reasons why the Sennheiser RF/Kleer headphones cost a lot more.

On the utilitarian front, the RCA WHP141B Wireless (900 MHz) headphones can be used in “Used – Very Good” condition for around $24 per pair at Amazon Warehouse Deals (AWD) by AWD actual. There are multiple listings for these, so it is possible that the price will drop further in the next few days. They go for $40+ in new condition. These are radio frequency wireless (not bluetooth). They average 3.5 out of 5 based on 1500+ customer reviews with over 280 questions answered if you are curious. Keep in mind, these are best suited for utilitarian, not audiophile use.