SEIRUS HeatTouch Ultra Slim 1500 Set Battery (1079.0.8951)

7.4v Lithium/Ion single battery or battery pack; Three Settings; Thin Battery; Hours of Heat; Green - Low 6 + hours; Yellow - Medium 4 + hours; Red - High 2 + hours; These are lithium-ion batteries, please check airline restrictions provided by airlines before traveling; Compatible with all 1500 and 3000 series HeatTouch Models and Sizes; One Size