M18 Ultrasonic-Wave Mosquito Repellent Watch

Features:
Physical principle, safe and environmental-friendly, more assured and healthier.
No smell, more suitable for children, pregnant women, the elderly, pets, ect.
Lightweight and comfortable to wear, you can carry it anywhere.
Waterproof and dustproof, not fear the rainy day.
Easy disassembly, convenient to Charge and disassembly.
Built-in large capacity lithium-battery, supports long time use.
Can be worn indoors and outdoors, such as seaside, parks, camping, hiking, fishing, ect.