Model ZS-633 Quantity 1 piece(s) per pack Color White Material ABS Specification Power: 5W; Frequency: 22~55KHz; AC 90~220V 50~60Hz; 2-round-pin plug Other Feature The 20~55KHz will make the secretory system and physiological function of mosquito cockroach mouse demodicid mite and other pest disorder to kill or repel them; But this frequency range will not affect human and pets and other animals; Non-toxic environment-friendly odorless the electronic pest repeller is widely used in house warehouse store hotel hospital office machine room garden and other place; Effective range: Approximately 80~120 square meter the best effect is 50 square meter Packing List 1 x Electronic pest repeller