2 in 1 Blue Laser Glasses LED Green Red Blue Laser Line Glasses Night Club Bar Stage Show Fluorescent PropsNote: Use in conjunction with smoke,The laser line can be clearly seen in the smoke. Note: The laser will generate heat when working,You need to rest for 1 minute after using it for 2 minutes,Otherwise,the temperature will be too high will damage the Laser Module. Product name: Laser glasses Size: One size Suit for: Bar nightclub party stage. Power Supply: Rechargeable battery. Charging time: 1. 5 hours Products Include: 1*Laser glasses. 1*charger.