The heat vest 2.0 is our first heated product with flexible heating elements. Thanks to the velcro system, the heating elements can be placed exactly where the heat is needed: Neck, shoulders, kidneys, upper or lower back area. The waistcoat is therefore the perfect heat source for sports, work or acute tension. Depending on the battery type, the elements heat for up to 11 hours. It is compatible with LENZ lithium pack rcB 1200/1800. Lithium batteries are not included. Heatable waistcoat with 2 flexible heat pads Up to four heat pads can be attached variably heats where the heat is needed at the moment: Shoulders, neck, upper or lower back lithium packs are attached by means of press studs under the breast ribs compatible with all Lenz lithium packs machine washable at 30 degrees Package contains: 1 heat vest 2.0 unisex 2 heat pads lithium batteries not included Download manual here