ITEM NAME:M2 Smart Watch Heart Rate & Blood Pressure Monitor Tracker Black Description: The bracelet is charged, and the latest version of the app is downloaded from the phone. Open the app and find my device (APP will automatically search for the bracelet) Open APP , match the bracelet, click on the binding bracelet again. Note : Please do not use the mobile phone to connect the bracelet, otherwise the application will not be able to detect the bracelet. I have been connected and need to forget the connection record in my mobile phone. High quality rechargeable polymer lithium battery for the smart bracelet and its standby time is more than 240 hours 0.42inch high definition OLED screen High sensitivity touch-control IC SMS mobile phone SMS synchronization reminder Intelligent monitoring of the heart rate Intelligent monitoring of the sleeping quality Pedometer movement step, movement mileage note Alarm prompt Phone settings (clock) Data sharing on facebook,twitter,wechat APP and other APP Charging interface USB type The smart bracelet is designed with the high grade military sensor and 4.0 chipset with the compatibility of IOS and Android phone Specification: 4.0 compatible (Androids and IOS) Display 0.42 inch OLED Dialog Material Plastic ABS Waterproof IP67 rating Strap TPU Elastomer Overall length: 235mm Adjustable length: 155-210mm Battery capacity: 70MAH Standby time: 300 hours Input voltage: 5V Touch to touch the button Sensor Low power consumption Accelerated sensor Packing carton data cable manual warranty card Package Includes: Bracelet*1 User manual*1 Usb cable*1 Note: The color may have different as the different display. THANK YOU FOR SHOPPING WITH US! Have a nice dayï ¼ ☠º SKU: ALU0035381368018727.Alarm prompt Phone settings (clock). User manual 1. Open the app and find my device (APP will automatically search for the bracelet). Sensor Low power consumption Accelerated sensor. The color may have different as the different display.