The Ultrasonic Mosquito Repeller Bracelet is an innovative way to keep mosquitoes away. It works by emitting sounds that mimic male mosquitoes and dragonflies, discouraging female mosquitoes from approaching. This physical repellent is safer and more eco-friendly than chemical alternatives, suitable for everyone including the elderly, children, pregnant women, and pets. Ideal for both indoor and outdoor activities like camping and fishing. Compact and lightweight, the bracelet is easy to wear. It has a rechargeable 80mAh battery that charges in 30 minutes and lasts up to 150 hours. Available in black, white, blue, and pink. Package dimensions: 32 * 52 * 78mm; total weight: 36.5g. Enjoy a mosquito-free experience with this ultrasonic wristband. Safe, chemical-free, and effective for all ages. Perfect for summer protection indoors and outdoors. Key Features: - Physical mosquito repellent - Safe & eco-friendly - Suitable for all ages - Indoor & outdoor use - Lightweight & portable - Fast charging & long battery life - 4 color options