Description: Specification: Brand new Compatible devices:Iphone 4s/5/5s/5c/6/6 plus,Ipad mini/Ipad air/5/4/3 Andriod system with bluetooth 4.0(Andriod 4.3 version and up grad version) Bluetooth version:bluetooth 4.0 Working distance:about 45ft(15M) Suitable for:wallet,car,pet,kids,bags,suitcase or others Size:2cmx2cm Battery:Cr2032 lithium coin battery (included) Package:1pc x Bluetooth Finder Tracer (battery include)