Package Include: Version 2 updated: New model of xpress module with more bigger packaging box. - Arduino Nano Compatible KIT x 1 All module was an OEM product from MyCEST, not made in china product. - Female to Female Jumper Wire x 12 - LED 3mm Green Module x 1 - LED 3mm Yellow Module x 1 - LED 3mm Red Module x 1 - Push Button Module x 1 - Buzzer Module x 1 - Potentiometer Module x 1 - USB Micro- B Type Cable x 1 - Plastic Box Manual ebooks for product buyer only, request the password (if any). More info at http://mycest.blogspot.com/2018/04/nanokit-rbt-v2.html