1.Core function upgrade:
New electronic clock with 24-hour system and battery level display.
2.Mosquito repellent:
Variable frequency ultrasonic covers various mosquitoes within 1.5m.
3.Scene adaptation:
Three frequency adjustments (park, indoor, sleep) for different environments.
4.Design and users:
Hypoallergenic silicone wristband for sensitive skin, black/white colors, portable wristband design.
5.Battery and charging:
30-minute quick charge, one week battery life in energy-saving mode, optimized battery display.