Special featuresWithout batteries, charger, including CXT adapter, in boxBattery connection on the side of the shirt.Comfortable heating due to 4 heating elements, 1 on the stomach, 1 on the back and 2 at the wrists.Please read the safety instructions and user manual carefully before use.Supplied adapter can also be used with our ventilated clothing.Preselection of three heating settings by button with LED indication of the selected setting.Heated undershirt made of thin and elastic material.Machine washable at a maximum of 30°C.Technical dataOperating time high (BL1040/41B): 03 : 30 hoursLining: Polyester (100%) Operating time low (BL1460B): 23 : 00 hoursHeat settings: High/medium/low Operating time medium (BL1460B): 10 : 30 hoursOperating time high (BL1860B): 07 : 30 hoursTumble dry: Yes Washing instructions: 30 °C Volts (voltage): 10.8-18 VColour: black USB port (charging mobile device): 1 Operating time low (BL1040/41B): 15 : 00 hoursPlatform: LXT / CXT Operating time medium (BL1860B): 16 : 00 hoursOperating time low (BL1860B): 33 : 00 hoursOuter layer material: Polyester (100%) Operating time medium (BL1040/41B): 07 : 00 hoursOperating time high (BL1460B): 05 : 30 hours Documents User manual