Hign-concerned Chemical: None Material: PVC,Plastic,Silica Gel Width[mm]: 10m-20m Depth[mm]: 10m-20m Weight[g]: 10m-20m Height[mm]: 10m-20m Battery Capacity[mAh]: PVC,Plastic,Silica GEL Battery life up to[hours]: PVC,Plastic,Silica GEL Voice assistant built-in: No Maximum