Intelligent ultrasonic mosquito repellent bracelet Pure physical mosquito repellent, green and chemical-free Fast charging with long standby battery life Emits specific sound frequencies to repel mosquitoes Effectively deters 70% to 80% of mosquitoes Suitable for the whole family Does not contain any toxic chemicals Long-lasting mosquito repellent bracelet Item Category: Mosquito Repellent Bracelet Input: 5V/1A Output: 34Hz-70KHz Charging time: about 30 minutes Battery life: 130 hours Color: black, white Specifications: Pure physical mosquito repellent, free of chemical drugs, safer and more environmentally friendly. Suitable for adults, children, elderly individuals, pregnant women, and pets. Lightweight and easy to carry for indoor and outdoor use such as at the seaside, park, camping, hiking, or fishing. Package Included: 1 x Bracelet 1 x Charging Cable 1 x Instruction Manual Notes: Due to differences in monitor displays, actual product color may vary slightly from images. Please allow 1-3 cm measurement deviation due to manual measurement. Kindly if you encounter any issues before leaving negative feedback. Thank you for your understanding.