Protect yourself from mosquitoes effectively and comfortably with the Ultrasonic Mosquito Repellent Watch, model M21 SE. Crafted from skin-friendly silicone and durable ABS materials, this wristband features an LED digital display with clock functionality, combining convenience with advanced insect-repelling technology. Utilizing ultrasonic waves ranging from 34Hz to 70KHz, this device safely deters mosquitoes by disrupting their hearing and nervous systems within an effective range of 1.5 to 2 square meters, making it ideal for both indoor and outdoor use. Key Features: · LED Digital Display with Clock: Easily track time while benefiting from continuous mosquito protection; the display also indicates automatic discharge with a flashing blue light for user awareness. · Ultrasonic Mosquito Repellent Technology: Emits high-frequency ultrasonic waves that repel mosquitoes silently and safely, without any harm to humans or pets. · Safe and Silent Operation: The ultrasonic waves are beyond the human hearing range, ensuring a quiet and non-intrusive experience. · Static Electricity Removal: Equipped with a discharge chip and metal conductor, the watch balances the body’s magnetic field by transmitting static electricity back to the main battery, enhancing comfort during wear. · Long Battery Life and Rechargeable: Features a built-in 90mAh lithium-ion battery that supports up to 7 days of continuous use and an impressive 6-month standby time. The rechargeable design allows for quick and convenient power restoration. · Comfortable and Durable Design: Made from soft, skin-friendly silicone, the wristband is lightweight and comfortable for daily wear during activities such as hiking, fishing, camping, sports, gardening, and more. Specifications: · Item Type: Ultrasonic Mosquito Repellent Watch · Model: M21 SE · Material: Silicone, ABS · Effective Range: 1.5–2㎡ · Frequency: 34Hz to 70KHz · Working Time: 7 Days · Standby Time: 6 Months · Built-in Battery: 90mAh Lithium Ion Battery (Included) Package Includes: · 1 x Ultrasonic Mosquito Repellent Watch Experience reliable mosquito protection combined with practical timekeeping in a sleek, comfortable design. The Ultrasonic Mosquito Repellent Watch is your perfect companion for mosquito-free outdoor adventures and everyday use.