Smart Ultrasonic Mosquito Repellent Bracelet 3Gears Frequency Conversion High-Efficiency Mosquito Repellent USB Charging

​​Main Features: Mosquito repellent wristband with 3 variable frequency Settings, suitable for both indoor and outdoor use. The wristband uses ultrasonic waves to intelligently and efficiently repel mosquitoes. Physical mosquito repellent, safe and harmless. The wristband is made of silicone material and is comfortable to wear. The mosquito repellent is detachable and can also be used around the neck. It is small and portable. USB charging, convenient to use and long-lasting battery life. Specification: Wristband material: Silicone Colour: Black, White Size: Reference size drawing Net weight:About 17g Battery: 3.7V Polymer battery Charging interface: 5V/1A Mrico USB Battery capacity: 100mAh Standby: About 6 months Battery life: About 7 days Frequency: 34HZ-70KHZ Effective range: 5-10㎡ Mode: Indoor - Universal - Outdoor Package Included: 1pc* mosquito repellent wristband Note: Please allow an error of 1-2cm due to manual measurement. Different computers display different colors, and the actual color of the item may be slightly different from the picture. Retail Box.Packing Safely in Bubble Bag.