Special characteristicsWithout batteries, charger, including CXT adapter, in boxBattery connection on the side of the shirt.Comfortable heating with 4 heating elements, 1 on the abdomen, 1 on the back, and 2 at the wrists.Read the safety instructions and user manual carefully before use.Included adapter can also be used with our ventilated clothing.Three heating settings can be preselected via a button with LED indication of the chosen setting.Heated undershirt made of thin and elastic material.Machine washable at a maximum of 30°C.Technical dataVolts (voltage): 10.8-18 VTumble dry: Yes Colour: black USB port (charging mobile device): 1 Operating time high (BL1040/41B): 03:30 hoursWashing instructions: 30°C Operating time medium (BL1040/41B): 07:00 hoursOperating time low (BL1040/41B): 15:00 hoursPlatform: LXT / CXT Heat settings: High/medium/low Outer layer material: Polyester (100%) Lining: Polyester (100%)DocumentsUser manual