Brand SMARTSENSOR Model AR112 Color Grey Material Plastic Quantity 1 Type Neck-type Power Supply 2 x AA batteries (not included) Power Plug N/A Certification CE Other Equipped with a mini light that is convenient for night use; Slide the switch to "Mosquito" position the unit generates ultrasonic signal to simulate the sound of male mosquito to repel the bitting female mosquitoes and the red LED flash; Slide the switch to "OFF" position to turn off the unit; Slide the switch to "Alarm" position this unit will sound beeps for alarm and the red LED flash. Packing List 1 x Mosquito repeller 1 x English manual 1 x Strap (46cm)