Clap on! Clap off! The sound activated on/off switch. Now with clap detection lights. UL listed. 2 claps - turn on the lamp. 3 claps - turn on the tree lights. The Clapper can control one or two appliances at the same time by simply clapping your hands. Clap 2 or 3 times to turn on or off: a lamp; Christmas tree lights. Printed in China. Mfg. in China. Color: multi. Gender: unisex. Age Group: adult.