Digital Smart Wristbands Vibrating Alarm Wristband Waterproof Vibration Alarm Clock Watch Reminder Sleep Monitoring Bracelet

High-concerned chemical : None Bluetooth-compatible Version : None Global positioning : None Metrics measured : Sleep Monitor Activity Tracked : Steps Tracker Screen size[mm] : 1 Category : Wristbands Application Age Group : Adult Waterproof Grade : Life Waterproof Compatibility : All Compatible Language : English Function : Calendar,Countdown,sleep tracker,Alarm Clock,week Brand Name : Shunmaii Screen Type : None Band Material : Silicone Origin : Mainland China Certification : None Touch Screen : No Origin : Mainland China Material : silicone+ABS Size : 224*16.5*9.4mm Power supply : USB charging Waterproof grade : IP65 Battery : 50mAh Charging time : 30min Battery life : 45 days Feature 1 : Smart Wristbands Vibrating Alarm Wristband Feature 2 : Reminder Vibrating Alarm Wristband Feature 3 : Waterproof Alarm Clock Watches Bracelet Feature 4 : Outdoor Smartwatch Bracelet Feature 5 : Waterproof Alarm Clock Watches Smartband Feature 6 : Vibrating Alarm Wristband