DescriptionThis mini and portable hand warmer and power bank allows you to carry it anywhere you want for sporting, fishing, hiking, camping, skiing, etc. 4000mAh capacity gives a full charge to mainstream digital devices in the market. Suitable for iPhone 8/7/6s Plus, Galaxy, Nexus and other Android phone, GPS, Ipod, MP3, digital camera.Feature- Color: Rose gold. - Material: Alloy. - Size: About 10.2 x 5.8 x 4.2cm/4 x 2.3 x 1.7inch. - Mini and portable. 2 in 1 pebble shape hand warmer and power bank. The handy design allows you to carry it anywhere with pcoket or bag while sporting, fishing, hiking, camping, skiing, etc. - Hand warmer. It can heat to warm both of your hands in cold weather. Easy to turn warming on and off and warming will automatically turn off when not in use to save energy. - Large capacity. 4000mAh capacity gives a full charge to mainstream digital devices in the market. Suitable for iPhone 8/7/6s Plus, Galaxy, Nexus and other Android phone, GPS, Ipod, MP3, digital camera. 3 indicator lights keep you informed of the remaining battery and heating status. - Made of alloy, it is durable, shockproof, anti-scald, anti-skid, explosion proof and radiation-free. - The short-circuit protection can smartly control overcharge and over put.Specification- Voltage/current: 5V/1A - Charging time: 2-3 hours - Battery capacity: 4000mAh - Lower gear 42: 8 hours - Middle gear: 50: 6 hours - High gear 60: 3 hours - Net weight: 135g