General description Ultrasonic Mosquito Repellent Wristbands are designed for outdoor activities such as camping, hiking, and fishing. These electronic wristbands not only repel mosquitoes but also feature a digital clock display for added convenience. Technical specifications Product name: Ultrasonic mosquito repellent bracelet Product size: as shown Display mode: digital display Charging method: Micro USB 5V/1A Operating frequency: 34HZ-70KHZ Battery capacity: 90mAH Charging time: approximately 30 minutes Endurance working time: 130 hours (seven days of continuous use when fully charged) Standby time: up to 150 days Usage Press the mosquito killer button once to activate the first gear. Press again for the second gear and a third time for the third gear, suitable for sleeping use. Press four times to turn off the mosquito repellent function. The clock display will automatically turn off after 10 seconds of inactivity. Other information Package includes: 1 Ultrasonic Mosquito