Birthday Party Cheer - Get multiple HAPPY BIRTHDAYs and display them in more areas for extra party cheer. These cute little hanging letters will put a celebratory smile on everyone's face. Battery Operated & Hang Anywhere - No power outlet needed. Only require 2 AA batteries to work. Hang on a wall, over a doorway, balcony, or anywhere you would like to spell out "Happy Birthday"! Durable & Energy Saving - The mini LED bulbs barely produce any heat, much safer than trational candles and can be stored and re-used in perfect shape for next birthday party. Specifications - 1.2 inch Individual Capital letters on an approx 3.5 ft long cable. Warm white waterproof LEDs. Powered by 2x AA batteries (not included) Commitment - We stand behind our products! Please feel free to contact us if you have any questions or concerns.