No more connect the charger to phone and keep the phone free. It has a protection from overcharging and undercharging the phone by indication the led light. It will not damage the phone battery. So, keep the phone on pad and happy charging. For fast charging quick charger is required with 3.0. Plastic material and base is non slip which has a LED lights. Qi is also know as wireless charger generally phone comes with charging wire. This new technology replaced the wired charging. Now all latest brands support wireless charging Apple iphone8, 8 plus, X for Samsung galaxy note 9, S9, S9+ samsung Note 8, S8, S8+, S7 S7 edge for Sony Xperia XZ3, Xperia xz2 and for LG G7 ThinQ, V30, G6, Nokia 8, Huawai latest version, microsoft Lumia 1020, 1520, 930, 920 and above version Nexus 4 and above version. Generally old people, children put the charging cable in phone in a hard way if you ask them to charge the phone but in wireless charging this tension is no more just put the phone on charging pad and charging start.