1:More about APP,Please see the website
www.ql-sport.com/xcx/web-manual-en.pdf
2:The maximum number of lamps that you’ll be able to simultaneously connect to will depend on the mobile device itself.
Most Android phones can be connected with 6 lights, and Most IOS can be connected with more than 8 lights ,but we know that some
phones could connect to fewer lamps at a time.
Please use a better mobile phone to connect the lamps.