Specifications‎:‎It will shoot a single beam light‎.‎Press the push button to turn it on‎,‎ release the push button to shut if off automatically‎.‎It will be used to point at any desired targets on projection screens‎,‎ video monitors‎,‎ and presentation graphics‎.‎Also can be used for forensics‎,‎ illumination‎,‎ indicating‎,‎ alignment‎,‎ sky pointing ‎(‎astronomy‎)‎ or just being cool‎.‎Type‎:‎ Laser Pointer PenQuantity‎:‎ 3 PcsMax‎.‎ Output Power‎:‎ 5mWRange in Darkness‎:‎ More than 1000mPower Supply‎:‎ 2 x AAA Batteries ‎(‎Not Included‎)‎Output Mode‎:‎ Constant WaveWorking Voltage‎:‎ DC 3.0VTrigger Voltage‎:‎ DC 2.8VTechnical Parameter‎:‎ Fixed Focus‎,‎ Dot Facula‎,‎ Continuous OutputFeatures‎:‎ Useful‎,‎ Portable‎,‎ Easy to Use‎,‎ Pen ShapeWave Length‎:‎Green Laser‎:‎ 532nmPurple Laser‎:‎ 405nmRed Laser‎:‎ 650nmSize‎:‎ 14mm x 160mm/0.55‎"‎ x 6.30‎"‎ ‎(‎Approx‎.‎‎)‎Notes‎:‎Please don‎'‎t shoot the light to eyes‎,‎ skin of human or animal‎.‎Please take out the batteries when you don‎'‎t use it‎,‎ and keep it away from kids‎.‎We suggest the continuous illumining use should be less than 1 minute‎,‎ in case of the excessive heat influence the service life‎.‎Due to the light and screen setting difference‎,‎ the item‎'‎s color may be slightly different from the pictures‎.‎Please allow slight dimension difference due to different manual measurement‎.‎Package Includes‎:‎3 x Laser Pointer Pens ‎(‎3 Different Colors‎)‎