Ultrasonic Mosquito Repellent Bracelet with Time Display Anti Mosquito Wristband for Outdoor(Black )

Intelligent ultrasonic mosquito repellent bracelet, non‑toxic and odorless, can be used with confidence. The bracelet achieves the mosquito repellent effect by imitating the nasty sound of female mosquitoes. The purely physical mosquito repellent is , more environmentally friendly and healthier. Item Type: Mosquito Repellent Bracelet Material: ABS+Silicone Weight: Approx. 48g Celsius 1.7oz Product Size: Approx. 23.5x2x1.5cm Celsius 9.3x0.8x0.6in Model: F9 Display Mode: Digital display Battery Capacity: 100mAh [built-in battery] Battery: Battery 3.7V Charging : MicroUSB 5VCelsius1A Working Frequency: 34Hz-70KHz Working Hours: charged and work continuously for 7 days Charging Time: About 30 minutes Life Time: About 150 hours Wearing : Wrist strap type, neck hanging Applicable People: Children, business, the general public, adults, the elderly Mode of : Push-button