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