M21 Ultrasonic Mosquito Repellent Bracelet in black for outdoors is a wearable that combines mosquito protection with everyday utility. It uses ultrasonic/bionic waves to help deter mosquitoes without chemicals.
Designed for outdoor activities such as hiking, camping, or backyard use, it can be worn by adults, children, pregnant women, and even pets.
- Mosquito deterrent method: purely physical ultrasonic/bionic waves intended to repel female mosquitoes.
- Multi-function: acts as a watch, step counter, and temperature reader in addition to repelling mosquitoes.
- Specifications: 200 mAh battery; strap length 260 mm, width 22 mm; three-speed frequency adjustment.
- Power and charging: micro USB 5V/1A charging.
- Safety and usage: chemical-free; suitable for adults, children, pregnant women, and pets; species effectiveness varies.
Fit: adjustable strap provides a secure, comfortable fit for most wrists; device is worn on the wrist to stay within reach during activities.
