Features 1. 3rd gear drive setting, in standby mode, press once to turn on the power, the blue indicator light will light up, and it can be used. Press the button again to enter second gear sport mode. Press the button again to enter the third gear silent mode. 2. Mosquito repellent principle: The bracelet mimics the sounds that female mosquitoes dislike, such as the sounds of male mosquitoes and dragonflies, to achieve mosquito repellent effect. In nature, female mosquitoes are the ones that suck blood and are in the stage of conception and egg laying. During this period, female mosquitoes will avoid male mosquitoes and avoid secondary conception. Therefore, simulating the sound of male mosquitoes can achieve mosquito repellent effect 3. Physical mosquito repellent: Pure physical mosquito repellent, not chemical mosquito repellent, safer, more reassuring, more environmentally friendly, and healthier. It can be worn by the elderly, children, pregnant women, and pets. The product is portable and can be worn both indoors and outdoors (beach, park, camping, hiking, fishing). 4. Long endurance: The mosquito repellent wristband is safe and energy-saving, with a long endurance. The intelligent chip is used for intelligent driving, low-power all day operation, power-saving, and radiation free. 5. Intelligent ultrasound, mosquito repellent wristband, all-round mosquito repellent, 24-hour uninterrupted care. Specification Product Name: Ultrasonic Mosquito Repellent Watch Product model: M30 Function: Sound wave mosquito repellent Input: 5V/0.5A Output: 34Hz-70KHz Battery capacity: 80mAh Charging time: approximately 30 minutes Range working time: 150 hours Product colors: black, white, blue, pink Single unit packaging size: 3.2 x 5.2 x 7.8 cm Total weight (including packaging): 36.5g Material: Silicone Weight: 50 g Package Include: 1x Ultrasonic Mosquito Repellent Bracelet Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store