Mancro Fitness Tracker,Activity Tracker Watch with Heart Rate Monitor, Waterproof Smart Fitness Band with Step Counter, Calorie Counter, Pedometer Watch for Kids Women and Men Product Description Bluetooth:4.0 Battery:50mA Polymer Lithium-ion Charging Time:1 hour Waterproof:Life Waterproof Operating Temperature:-10 to 45 Storage Temperature:-20 to 60 Support:IOS 7.1 and Android 4.4 or above Synchronization Range: 3m(theoretical rang is 10m without any interference) Features 1. Multi Functions: SMS, information, call reminders, Heart rate monitor and blood pressure monitor, Sleep monitor, check sleep trend chart to view your sleep time and quality. 2. Convenient: Bluetooth synchronization, and the data synchronization does not require cable. When the Bluetooth is disconnected or the phone is out of the Bluetooth distance, the watch will alert you. It adopts USB direct charge. 3. Remote Camera: it can take photos by phone through remote control of the wristband. 4. Activity Tracker: recording your daily activity: steps, distance, time, calories; check and share your data anytime. 5. Anti-lost: the wristband will remind you with vibration when your phone is 5m away from you. 6. Sedentary reminder: you can set it to remind you to walk or exercise after a long time sit. 7. IPX7 Waterproof: smart bracelet from water (Not for swimming or taking a shower). Package Include: 1 x Smart Bracelet 1 x Manua Heart Rate & Sleep Monitoring tracks real-time heart rate automatically and continuously along with sleep duration and quality analysis for a healthier lifestyle All-day Activity Tracking accurately records daily activities including steps distance calories burned active minutes and sleep status Multi-Sport Modes and Connected GPS features 14 exercise modes for detailed activity data connects to your cellphone's GPS to display run stats like pace and distance and record your workout route Notifications on Your Wrist receive call calendar SMS and social media notifications Facebook WhatsApp LinkedIn Instagram and Twitter directly on the display Built-in USB Plug easily charge with any USB block or computer no additional charging cable needed one charge provides up to 7 days of usage