| Have a happy shopping! Bluetooth 4.0 Battery 50mA Polymer Lithium-ion Charging Time1 hour Standby time 7 days or so Working hours 3-5 days WaterproofLife Waterproof Operating Temperature-10 to 45 Storage Temperature-20 to 60 Support IOS 7.1 and Android 4.4 or above Synchronization Range3mtheoretical rang is 10m without any interference Waterproof level: IPX5 Pedometer: yes Calorie counter: yes Heart rate: yes 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 | |