Xergy Romantic warm white festival party wedding LED wine bottle lights copper wire LED string lights cork shaped , Brightness atmosphere LED light, wireless and cordless Perfectly in any bottle, easy to use, just switch the button to turn on/off the light It can provide up to 48 hours of light by three new batteries. Powered by: 3PCS LR44 batteries. The batteries can last for around 24 hours. Please remove insulating sheet for batteries to connect and start Package include: 2 cork light, 2 Meters each ,with batteries , (Bottle not included )