<b><p>Specifications:<br></b> ● Color: Black/ Grey/ Pink/ Brown/ Red/ Navy/ Green white/ Green yellow<br> ● Sock’s material: Cotton & spandex<br> ● Sock’s size: Free size, fits for women and men<br> ● Heated area: Front instep<br> ● 3 levels heat setting includes: (1) High setting: Red light, heating 3-3.5 hours; (2) Medium setting: Orange light, heating 4.5-5 hours; <br>(3) Low setting: Green light, heating 6-6.5 hours.<br> ● Heating temperature: Adjustable, depends on heating level<br> ● Heating hours: Depends on heating level<br> ● Package includes: 1 pair of heated socks, 1 pair of li-ion battery, 1 AC charger and 1 elegant present box<br> ● Washing: Hand wash and soft wash.<br></p> <b><p>Simple steps to enjoy suitable warmth:<br></b> After connect to the batteries with wires which located in the sock's pocket.<br> Step 1: Press the ON/SETUP/OFF, then it is Red light (100% heat).<br> Step 2: Press the ON/SETUP/OFF again, then it is Orange light (75% heat).<br> Step 3: Press the ON/SETUP/OFF again, then it is Green light (50% heat).<br> Step 4: Press the ON/SETUP/OFF again, then the light close and it will not heat.<br> We recommend you set the temperature setting at High (Red) at first 5-10 minutes. And then <br>charge to set it at Setting- Medium (Orange)/ Setting Low(Green) and you will feel fine.<br></p> <b><p>Warm tips:<br></b> Tips 1: Need to charge all 2 batteries fully about 12 hours for the first time use cause the li-ion battery <br>may not full or is out of power. In every subsequent use it takes 4-5 hours for full charged.<br> Tips 2: Please charge 2 batteries at the same time.<br> Tips 3: The charger light will turn red to green when the battery are fully charged.<br> Tips 4: Hand wash and soft wash would recommend cause machine wash would damage heating elements.<br> Tips 5: To avoid skin burns at high temperature, after you feeling warm, please turn off the heating when sleeping.<br></p>