Magnetic 2 Packs Electric Hand Warmers 6000mAh

This magnetic hand warmers with 3 adjustable heat settings up to 140?F, 3S rapid heating. With a combined 6,000mAh battery (3,000mAh each), the first heating level is 113?F, can work for 8 hours; The second heating level is 131?F, can work for 4 hours and the third heating level is 140?F, can work for 3 hours. You can combine them into a compact hand warmer, or split them to warm each hand individually, ensuring cozy hands throughout all your outdoor adventures. 3.82" L x 2.36" W x 1.3" Thick