Hi Everyone, Hope everyones doing well and having a good week/day. I just wanted to bring this product to your attention as I feel it hasn't been noticed. I purchased this product as a Birthday treat to myself but I took a gamble on it as I didn't know what it was going to be like and let me tell you, its FANTASTIC !!!. Being a nightshift worker sometimes at 3am or 4am UK Time I want to play guitar but unable to due to my parents being asleep and neighbours. The product is super easy to set up and you will be rocking out in no time. It has built in SIM AMPs into the app. The App is completely free and has preinstalled Sim apps as well as downloading community members amps too. It is very similar to Robs fender tone master pro. You can select which knobs in the chain you want to turn on or off. This is a downside as its all done on your phone or spend more money on a switch. For you who just want one sound its perfect. Latency is basically amazing considering its done via bluetooth. You can play along to songs you know how to play and adjust the volume knob into the app amp sim so you can get it just right where you hear the song, guitars and yours too. Spotify - just back out of the app and play a song Itunes - I think you have to set it up via the app itself and link it up. Im not an Iphone user so can't comment on how good it is. For spotify its simple and easy. At the moment Im learning slipknot songs and jaming along to the sublimal verses album is a dream come true. The headset is noise cancelling, you can use them as normal bluetooth headphones. It comes with wireless guitar jack and wireless headset. LINKS DOWN BELOW. Thanks for reading if you do buy it, you won't be disappointed. Is Positive Grid Spark NEO the BEST Headphone Amp EVER?!?,https://www.youtube.com/watch?v=li-BUkmCof0 Positive Grid Spark NEO - Best NEW Guitar Headphones!?,https://www.youtube.com/watch?v=SmgU_HId4_4