Intelligent ultrasonic mosquito repellent bracelet Pure physical mosquito repellent, green Fast charging, long standby battery life Simulates 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-term 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 elderly, children, pregnant women, and pets. Easy to carry for indoor and outdoor use (seaside, park, camping, hiking, fishing, etc.) Package Included: 1 x Bracelet 1 x Charging cable 1 x Instruction manual Notes: Due to differences in monitors, the actual color of the item may vary from the images. Please compare the detailed dimensions with your own measurements. Allow 1-3 cm measurement variation due to manual measurement. Please with any concerns before leaving negative feedback if you experience any issues with the product. Thank you for your understanding.