Featuresr it is specially designed for samsung galaxy s5r ultrathin design compact and lightweight without increasing additional weight of the s5r adding wireless charging feature by piggybacking it on the battery of s5 it works well with any qi enabled chargerr support sleepwake up function when using with your smart coverr easy to user the receiver can be attached to the battery all the time and it would not interrupt the normal use of the s5r r how to use itr step 1 open the back