Smart Bracelet Vibrating Alarm Wristband Waterproof Silent Vibration Alarm Watch W/Step Counter Pedometer Gift for HeavySleepers

High-concerned chemical : None Bluetooth-compatible Version : NONE Global positioning : NONE Metrics measured : Other Activity Tracked : Steps Tracker Screen size[mm] : as shown Category : Wristbands Application Age Group : Adult Waterproof Grade : Life Waterproof Compatibility : All Compatible Language : English Function : Calendar,Passometer,Alarm Clock Origin : Mainland China Touch Screen : No Screen Type : LCD Certification : NONE Band Material : Silicone Vibrating Alarm Wristband : Alarm Clock Watches Silent Wrist Shock Bands : Silent Vibration Alarm Watch Origin : Mainland China Material : Silicone + ABS Power Supply : USB charging Waterproof Rating : IP65 Battery : 50mAh Charging Time : 3 hours Battery Life : 7 days