1. Magnetic , beyond imagination: The twin hand warmers are connected together by strong magnets, but can be easily separated when necessary. You can combine them together to make a palm-sized hand warmer, or separate them into your pocket, hold one in each hand, and share a heater with your family. 2. Quick release of heat: Generates a lot of heat in seconds. The ultra-, smooth, one-piece premium brushed aluminum shell promotes heat retention and even heat distribution. 3. Best warming moment: Ergonomic comfort. Beautiful. The hand warmer has three heating temperature settings (45-55-65). Choose the heat that is most comfortable . 4. Longer lasting warmth: The twin hand warmers are equipped with a 6000mAh rechargeable battery (single 3000mAh), which can produce a lot of heat output for 8 hours. 5. : We enhanced the details, such as the rubber cover to protect the charging port from dust and pocket dirt. A great gift for golfers, campers, hunters, hikers and other outdoor sports enthusiasts. Size:97x29x34mm/3.82x1.14x1.34 inches Battery Capacity:Total 6000mAh (Single 3000mAh) Colour:Black Material:Plastic Package Contents: 1 * Hand Warmer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.