1.mini speaker 2.looks like an egg 3.no battery, environmental protection 4.Washable, dirt and scratch resistant No external power needed, volume amplifiedHolds steady, functions well in hand-free mode                                                           Washable, dirt and scratch resistant  Unique design makes it easy to access to the phone functions. Install convenience  Bulk packing (Accessory Only,Cell Phone not Included)Perfect Compatible. 

mini speaker WST-I003