Special features: Excluding batteries, charger, including CXT adapter, in box. Battery connection on the side of the shirt. Comfortable heating with 4 heating elements: 1 on the stomach, 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 pre-selectable heating settings 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 data: USB port (charging mobile device): 1 Color: black Operating time high (BL1460B): 05:30 hours Operating time medium (BL1040/41B): 07:00 hours Washing instructions: 30°C Heat settings: High/medium/low Outer layer material: Polyester (100%) Operating time low (BL1460B): 23:00 hours Operating time medium (BL1460B): 10:30 hours Operating time high (BL1860B): 07:30 hours Platform: LXT / CXT Operating time low (BL1040/41B): 15:00 hours Operating time high (BL1040/41B): 03:30 hours Operating time low (BL1860B): 33:00 hours Operating time medium (BL1860B): 16:00 hours Lining: Polyester (100%) Tumble dry: Yes Volts (voltage): 10.8-18 V Documents: User manual