There is a paper manual in the product package, and you can click the link below to download the electronic manual:
https://cdn.shopify.com/s/files/1/0467/6216/4375/files/imoo_user_manual.pdf?v=1599796319
https://cdn.shopify.com/s/files/1/0467/6216/4375/files/imoo_user_manual.pdf?v=1599796319