3$ delivery / 1$=10000LL M1 Ultrasonic Mosquito Repellent Bracelet - White Description: ThisUltrasonic Mosquito Repellent Bracelet, adopts microcomputer ultrasonic frequency, enables to transmit 360 degree ultrsonic wave. Electromagnetic wave and bionic wave that can interfere with the auditory and nervous system of mosquitoes so as to drive them. Additionally. this smart mosquito repellent doesn't contain any chemical agent, and is environmental and healthy. Main Features: Drive away mosquitoes by imitating the sounds that female mosquitoes hate, such as the sound of male mosquitoes and cockroaches, to achieve mosquito repellent effect No noise, will not affect your sleep Stylish appearance, portable design, can be worn on the wrist Small size for easy carry Built-in Li-ion battery charge 30 minutes, work for 130 hours Input: 3.7V - 1A, output: 34Hz - 70KHz Three-speed drive setting Power is turned on as a file: daily indoor use Press the buttont again to switch the second gear outdoor sports mode Press the button again to switch the third gear, silent mode الحالة جديد الماركة ماركة أخرى