SPECIFICATIONSPower Mode: Battery Powered/USB Dual UseOperating Voltage: ≤36VBattery Properties: Rechargeable BatteryRechargeable Battery: Lithium Battery-PolymerConnectivity Technology: WirelessMajor Material: Stainless SteelSpecial Features: DisplayControl Method: TouchpadRecommended Usage: For smartphones or tabletsWireless Communication Technology: WirelessItem ID: LU592020This app is not a medical device. Data obtained during the use of this app is for reference only, and should not be used for clinical diagnosis, medical research, diagnostic, or treatment purposes. DISPLAY: Convenient for you to easily che the current time, step count. No need to take out your cell phone or watch frequently, making time management more convenient. It has touch buttons for switching on off and function interface switching. MULTIPLE SPORT MODES: Support hiking, cycling, running and other sporindividuals modes, more real time recording of the length of exercise and step count and other important data. PHONE APP ASSOCIATION: The ring can be associated with the cell phone APP data after wearing, so that you can pay more attention to your own data situation, helping to develop good living habiindividuals. POWERFUL LONG LIFE: It comes with an efficient and convenient charging case. The ring can be easily charged 4 to 6 times, providing you with a long lasting battery life experience. With the charging case, it lasindividuals for 3-5 days.