Special featuresWithout batteries, charger, including CXT adapter, in boxBattery connection on the side of the shirt.Comfortable heating from 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.Pre-selection of three heating settings by 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 dataOuter layer material: Polyester (100%) Platform: LXT / CXT Working time low (BL1040/41B): 15 : 00 hoursWashing instructions: 30 °C Lining: Polyester (100%) Working time 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 VWorking time high (BL1040/41B): 03 : 30 hours Documents User manual