Kiplyki Rechargeable Hand Warmer 2 In 1, Portable Hand Warmer, Great For Outdoor Sports, Hunting, Camping, Golf, Warm Gifts Features: Widely used: In cool winters, it can be used as a hand warmer for warmth and as a massager to relieve fatigue induced pain. Quick heating: Press and hold for 4 seconds to activate the heating function of the hand warming device, without the need for prolonged waiting. Mobile power supply: Equipped with a large capacity battery of up to 5000mah, it is compact and lightweight, and can be used as a portable charging power supply, making it convenient for you to charge your phone during camping, hiking, and picnics. Battery indicator light: indicates the battery level, providing warmth with just one click Adjustable temperature: There are two temperature for you to control and adjust, the first level is 48 ° C, the second level is 52 ° C, and it can warm your hands for 6-8 hours Product Description: Color: green Material: ABS, aluminum alloy Power supply : lithium battery Heating : electric film type Rated voltage: 2 Rated power: 5 Internal battery capacity: 2000mAh to 4000mAh Size: 11 * 7 * 2cm/4.33 * 2.75 * 0.78in Includes: 1x hand warmer 1x data cable Features: Widely used: In cool winters, it can be used as a hand warmer for warmth and as a massager to relieve fatigue induced pain. Quick heating: Press and hold for 4 seconds to activate the heating function of the hand warming device, without the need for prolonged waiting. Mobile power supply: Equipped with a large capacity battery of up to 5000mah, it is compact and lightweight, and can be used as a portable charging power supply, making it convenient for you to charge your phone during camping, hiking, and picnics. Battery indicator light: indicates the battery level, providing warmth with just one click Adjustable temperature: There are two temperature for you to control and adjust, the first level is 48 ° C, the second level is 52 ° C, and it can warm your hands for 6-8 hours Product Description: Color: green Material: ABS, aluminum alloy Power supply : lithium battery