1、Summer Camp Must Haves: The mosquito repellent bracelet adopts USB fast charging, charging for 30 minutes, standby for 6 months, and can work continuously for 7 days when fully charged, effectively avoiding more than 90% of mosquitoes. 2、Main Features: Ultrasonic insect wristband uses pure physical mosquito repellent, which is safer, more environmentally friendly, more assured and healthier. 3 gear switching, suitable for different scenarios. You can switch freely with one key. 3、Versatile Use: This ultrasonic mosquito repellent bracelet watch is stylish, lightweight, high end tech, perfect for birthday, mother's and father's day gifts, whether you're indoors or camping, fishing, hiking, sports, grilling. 4、Adjustable Wrist Strap: You can adjust it according to the length of your wrist. This design makes the anti mosquito bracelet suitable for almost everyone. Portable, with time display, temperature measurement, step counting functions. 5、Safe and Healthy: USB insect repellent bracelet uses ultrasonic and physical methods to achieve the purpose of repelling mosquitoes, no chemical additives, no noise, no peculiar smell, completely safe for the elderly, pregnant women, children and pets. Item Type: Ultrasonic Mosquito Repellent Bracelet Material: Plastic Battery Type: Built in 90mAh Lithium Battery (Included) Battery Life: 6 Months in Standby, 7 Days of Continuous Work when Fully Charged Function: Ultrasonic Mosquito Repellent, Electronic Clock, Temperature Measurement, Step Counting 1 x Ultrasonic Mosquito Repellent Bracelet 1 x Charging Cable 1 x Manual