Hello, I have a Topping NX3s Headphone AMP for sale. The amp is in perfect condition, and comes with the original packaging and accessories. It was only tested out for about 2 hours, so condition is as new. The price is 60 bucks firm. Thanks for viewing my ad. The specs can be seen at the Topping website. http://www.tpdz.net/productinfo/394768.html