2x1.5V AAABatteryDEAR USERS:KEY FUNCTIONS:● Directly check personal weight information through graphs;● Set password to protect personal information and store multi-user data;● Simply and clearly graph the tendency of weight and BMI, from which youare able to keep track of the change.● Bluetooth wireless technology;● Connect with different smart devices respectively.BATTERY INSTALLATIONbattery baffleA. Take out the used battery withthe aid of a cuspidal objectB. Install new battery by puttingone side of the battery beneaththe battery baffle and thenpressing down the other side.Please take note to the polarity.1x3V or 2x3V lithiumbattery(CR2032)ABOUT SENSSUN BLUETOOTH SCALEBluetooth personal scales help you to store and keep track of your weight on your smart phone.This scale can transmit your weight data to your mobile device via Bluetooth technology, as wellas make graph of your weight results, from which you are able to keep track of the trend anytime.Download SENSSUN scale software to use Bluetooth scale, you will start your first step of weightcontrol.Thanks for using our Smart Bluetooth scale! To make sure data correctness and product servicelife, please read the instruction manual carefully before use, and keep for later reference.TO CONVERT WEIGHT UNITIf the scale is with both measuring system of Metric(kilograms) and Imperial (pounds, stones),you can convert weight unit as follow:BatteryCoverUnit switchkg/lb/stCondition 1: if the unit switch is on the back of the scale,A. Find unit switch on the back of scale.B. Pull up and down the unit switch to convert scaleunit between kg-lb-st.Note: Please use corresponding battery. Please remove battery if it is not inuse in a long time(more than three months).