A:AnswerNo, you have to plug the base to an outlet, and place the phone on the base to charges this is a wireless charge. It does not get power from Wi-Fi connection
A:AnswerYes, you can use it to fast Charge any compatible Samsung Phone, or any phone that will QC. I've used it on S7 Edge, S8+, Note 8 and the S10+ It is still working great for travel!
A:AnswerThe Pixel 2 does not have wireless charging so the charging dock will not work with that phone. However the other adapters will because they use USB type C.
A:AnswerThe cables for the wireless charger and the car charger are about five feet long. The cable for the battery pack is about six inches long. If your advant has wirelessly charging capability it should work, the fast charge only works with models that are fast charge capable.