Expert plus quality solid aluminium case with a single ultra bright 200 lumen cree led water proof to a depth of 2 metres and the impact resistant casing is capable of withstanding drops from 15 metres easy touch onoff button at base and four function magnetic switch low medium high sos when sos setting is chosen the torch automatically flashes a morse code sos signal uses 2 aa batteries sold separately supplied with a pocket clip and wrist strap display packed