Ultrasonic Anti Mosquito Insect Pest Bugs Repellent Repeller Wrist Bracelet

Features: - 100% brand new and high quality - Built-in smart chip, safe, power saving and no radiation - No chemicals added, pure physical repellent, environmental and non-toxic - Three-speed drive set, you can choose the one you like - Fast charging, can work for 130 hours, standby for 1 month, long time battery life - Fine structure design, to achieve life waterproof, hand-washing and rain will not influence the normal use - No matter indoors or outdoors, it can repellent effectively, let you enjoy happy summer - With this watch, children can be in close contact with nature   Technical Specifications: Input: 5V/1A Output: 34Hz-70KHz  Charging time: About 30 minutes Working time: About 130 hours Color: Black and white   Package included: 1 x Mosquito Repellent Bracelet 1 x USB charging line 1 x Manual   Notice:  1. Please allow a bit error due to manual measurement. please make sure you do not mind before you bid. 2. The color may have different as the difference display, pls underst