... with beautiful colors when you turn on it or shock it ,no heat,no radiation,no voice during ... but it more like a watch ,we have two big style of it ,warm-toned and cool-toned .It ... to design it ,decide it shining through switch or shock.It has no heat ,no radiation ,no ultrovoice during ... work.Nowadays it is sought after in the group of young boys and girls ,it became a fashionable ...