Check the listing for details. RDL D-TPS7A Passive Single-Pair Sender. Color: White, Condition: New. Listed at 59.99 USD. The -TPS7A is a single-pair audio sending module compatible with RDL® Format-A twisted pair products. The front panel features a single stereo mini-jack intended for stereo consumer line level audio sources. A studio-quality transformer provides isolation between the audio source and the RJ45 TP CABLE.The -TPS7A is a single-pair sender, feeding the input signal to the cable pair set on the rear-panel switch during installation. This module drives only one cable pair, therefore a TP CABLE RJ45 jack is provided to accept signals and power from other mic-level or line-level Format-A senders. Two other single-pair senders may be chained to a TP CABLE jack, or a single two-pair sender may be connected. If three single-pair senders are connected together, each sender must feed a different pair: A, B or C. The -TPS7A must be set to feed pair A if it is connected together with an RDL two-pair sender that feeds stereo audio on pairs B and C.The -TPS7A is a passive module that does not require power to operate. If power is present on a cable connected to a TP CABLE jack, that power is passed through to the modules connected to the other TP CABLE jack. Return Policy:Must be returned within 30 days in same condition as sold. Buyer is responsible for return shipping. If item was "Free shipping" actual cost of shipping will be deducted from refund.If there is an issue with a product, please contact me immediately for a resolution. International bids only accepted if eBay's Global Shipping Program is used. Buyer is responsible for any taxes, fees, tariffs or duties associated with this purchase. Contact eBay for further details.Shipping rates are for the continental US only. Alaska and Hawaii please check for shipping rates.Thanks for looking