Feature 1USB FAST CHARGING: Ultrasonic repellent watch features USB fast charging, 30 minutes of charging, 30 days of standby, 30 hours of use, and over 90% effective bug repelling. 2THREE MODES: Ultrasonic repellent bracelet watch uses three modes. First gear for daily indoor use, second gear sports mode, third gear silent mode. 3SAFE AND HEALTHY: USB repellent watch uses pure physical repellent, non chemical repellent, safer, more environmentally friendly and healthy. 4WORKING PRINCIPLE: Repellent wrist watch can repel bugs by imitating the annoying sound of female bugs, such as male bugs and dragonflies. 5APPLICABLE: Repellent watch is the perfect gift for the elderly, children, pregnant women and pets. Sui .wang-edit-text .wang-edit-text .wang-edit-text Package List1 x RepellentWatch1 x Charging Cable1 x Instruction Manual