Backto20s Flameless LED Tealight Candles with Remote Control , 36 - Pack Any wireless devices consume little bit power even when they are sleeping and waiting for the remote signal. The button battery inside each candle can only last around 3 days even it is turned off by remote. Hence candles are good for parties and service where it create dramatic on and off effect controlled by remote. If you like to use them again in long time, please do put switch to off MANUALLY to shut off battery completely. Our store supply replacement batteries at very low cost, you may purchase backup batteries from us. Equiped with a remote control to turn off/on all candles, Ease to turn off/on candles in hard-to-access area Set of 36 unscented battery-operated flameless votive candles Embedded LED creates the glowing and flickering effect of a real candle Realistic-looking wick, feel like a real candle Last up to 48 hours. CR2032 Button Batteries included.