Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. 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: pink, green, white 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: pink, green, white Material: ABS, aluminum alloy Power supply : lithium battery