Special featuresWithout batteries, charger, includes LXT adapter, in boxBattery connection on the side of the shirt.Comfortable heating from 4 heating elements, 1 on the abdomen, 1 on the back, and 2 on the wrists.Read the safety instructions and user manual carefully before use.Included adapter can also be used with our ventilated clothing.Preselection of three heating levels via button with LED indication of the selected level.Heated undershirt made of thin and elastic material.Machine washable at a maximum of 30°C.Technical dataOuter layer material: Polyester (100%) Platform: LXT / CXT Runtime low (BL1040/41B): 15:00 hoursWashing instructions: 30°C Lining: Polyester (100%) Runtime medium (BL1040/41B): 07:00 hoursUSB port (charging mobile device): 1 Colour: black Heat settings: High/medium/low Tumble dry: Yes Volts (voltage): 10.8-18 VRuntime high (BL1040/41B): 03:30 hours Documents Instruction manual