2 pack SPDIF Optical Female to Female Coupler extends the length of your Toslink cable by combining 2 optical cables. Our adapter does not affect the sound quality so you can keep enjoying the full quality of sound. Our Toslink Digital Optical Female to Female Coupler is manufactured with a high-quality PVC casing to deliver its durability and ensure safe experience. Its gold-plated connectors are manufactured to resist corrosion and transmit the signal with the highest clarity. Enjoy the crystal clear 5.1/7.1 sound with your home theatre systems, DTS Surround, and Dolby Digital Systems. Compatible with gaming consoles, soundbars, TVs, speakers, subwoofers, Blu-Ray players, and AV receivers. It is a necessary tool for connecting optical Toslink cables together in the area that may be too large for single optical cable.