RJ10 male-RJ10 female anti-twist telecommunication adapter Connect this Nedis adapter to an audio device base to prevent the cable from getting tangled. Compatible with detachable cables only.      Product specification Color Black Packaging Plastic bag Outer material ABS Card design Rotatable Link B RJ11 (6P4C) Female Connection A &  B RJ10 (4P4C) Male - RJ11 (6P4C) Female       Supplier Code: TCGP90950BK EAN code: 5412810283057