   neutral   This is silver gray, while I remember your handset was black.     neutral   I have changed a case for it.  
    neutral   Can a handset case be changed?     neutral   Of course. That's why I bought this type. I can change its case frequently, so it is novel to use it.  
    neutral   How many cases are accessible?     neutral   
 Usually there is no extra cost ; the factory has already prepared some. You need only ask in store
 Three. There are also various color-spots, which make the case even more charming!