This is a genuine R4 Product. (Beware Chinese Clones)
From the Xploit leaders on the last console generation comes a solution to this one...
Compatible With ALL Current Switch Firmware & Regions.
Simply remove Right Joycon, Slide in the RCM Tool/Jig, Insert the Battery Backed Up USB-C Dongle and Power ON - Voila.
Once entered into RCM mode, Simply reconnect Right Joycon and use Your Switch as normal.
Easy to use and setup, No License Fee or Restrictions on use. (Website Support)
Updatable and Powered by Re-chargable 120mah LIPO Battery
Supports Multiple Payloads (Hekate, Atmosphere, Kosmos, SXos, ReiNX etc) and .bin file options.
1 Year RTB Manufacturers Warrantee
Easiest Way Install Emulators (GBA, Playstation1, Nes, N64, Snes, Arcade etc) Android, and YES play NSwitch Backups
Watch a great R4S video review HERE
Setup Guide HERE
Other Informative & Useful Switch Videos HERE
(Nintendo Switch Manufactured After July 2018 May Not Be Compatible. Send me your Serial Number and i will advise)