1.Nontoxic and environmental protectionThis rechargeable mosquito repellent bracelet uses skinfriendly silicone, nontoxic, odourless and without additional chemicals, suitable for babies and adults. This mosquito repellent bracelet can keep the ugly mosquitoes away and thus protect your skin from bites, without harmful chemicals, and y. The adjustable watch strap is suitable for most people. 2.Intelligent TechnologyBuiltin highquality intelligent chip, 30 minutes USB fast charging (remove the host from the bracelet during charging), 30 days standby time, the mosquito repellent bracelet can be used for 130 hours after fully charged. ※ Note: You need to reset the time after full discharge. It is recommended to charge the battery before the battery runs out. 3.Effective protection against mosquitoesIt is very suitable for indoor and outdoor activities. Provides protection against mosquito bites for up to 130 hours. Very suitable for outdoor activities such as outdoor camping, hunting, running, traveling, fishing, BBQ, gardening, picnic, golf and even a simple outdoor barbecue. ※ Note: Daily sealing is possible, but immersion in water is prohibited. 4.Biosonic Mosquito RepellentThis mosquito repellent bracelet uses biological sound waves (ultrasonic bionic waves). Most leeches are female mosquitoes. The bracelet imitates the unpleasant sounds of female mosquitoes such as the sounds of mosquitoes and male cockroaches. The updated version has a time display function.