How to set the sleep mode: Press the white button(when the screen is blank screen) for 3 sec(you will see 3 ""zzz"") will get in sleep mode; press white button again will display sleep time. When you got up, press white button 3 sec again(will see ""zzz"" to ""z""), mean exit sleep mode. Though the smartphone app you could check your sleep quality easily Features: Display: LED screen Time: Automatic time correction via SYNC with phone Steps: Record steps automatically Distance: Show total walking distance Active Time: Measure active time Calories: Show total calories burned Battery: Show battery level Alarms: Notice nap & night sleep at workday & weekends, also multi purposes like take your medicine Bluetooth Version: V4.0 Smartphone Compatible: iPhone 5 iPhone 5s iPhone ES iPhone 6 iPhone 6 Plus iPhone 6s iPhone 6s Plus & iOS 7.0 and above, also support Android 4.0 above Endurance: 7 days Charging: 1 - 2 Hours (Charge for 8 hours before the first use) Memory: Record data of 7 days Package Included: HeHa Dao x 1 Manual x 1 Warranty Card x 1 Product QC card x 1 USB charger x 1 Waist buckle x 1 Installation manual x 3
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