Our Hand warmer combines hand warmer and power bank, used as a comfortable handwarmer in cold winter and a portable phone charger for emergency use. Featured with 3 adjustable temperature levels, double-side heating, 5000mAh rechargeable battery, intelligent protection system, keep you warm and refill your phone battery. Great warm gift for kids, adults, the elders. Ultra-compact and portable, easy to carry on the go. *MULTIPLE PURPOSES & CONSIDERATE - Perfectly combines hand warmer and power bank, which can be used as a comfortable handwarmer in cold winter and a portable phone charger for emergency use. A optimal caregiver for you and your mobile devices in cold winter. Great warm gift for kids, adults, the elders. Ultra-compact and portable, easy to carry on the go. *DOUBLE-SIDE HEATED & 3 LEVELS TEMPERATURE ADJUSTABLE - The palm-sized hand warmer heat up within seconds. And, it offers 3 adjustable temperature levels (Level 1 - 40℃, Level 2 - 50℃, Level 3 - 60℃), easily slightly press the POWER BUTTON to select the temperature level as you want. Anti-scald and radiation-free. *5000mAh RECHARGEABLE - As a portable charger, its 5000mAh capacity can give a full charge to mainstream digital devices on market, such a iPhone 11 /11 Pro Max XR XS 8 7 6 6S Samsung S10 9 8 and other mobile devices charged via USB cable. *SAFE & USER-FRIENDLY - Safety is top-of-mind, this pocket hand warmer have built-in intelligent protection system is provided with safeguard of power on, short circuit and over loading, etc.. Ensure the security of products. *STYLISH APPEARANCE & DURABLE - The portable heater Made of high-tech aircraft-grade aluminum and ABS materials, thousands of polished exterior material, smooth and warm, portable and compact as well anti-skid in one hand. Shockproof and anti-scratch. Brand - iMounTEKProduct Name - Portable Hand Warmer (Double Side Heating)Materials - Aircraft-grade Aluminum Alloy + ABSBattery Capacity - 5000mAh/5whInput Voltage - 5V/IAOutput Voltage - 5V/I.5ACharging Time - about 5 hours Available Color - Rose Gold, Gold, Silver, BlueWorking Time - About 3 hours (The lasting time depends on external temperature and heat settings)Product Size - 10.2x5.9x2.3cm /4 x 2.32 x 0.9inchesProduct Weight - 133g/0.30lbs Package Size - 19x12x6cm/7.48x4.72x2.36in Package Weight - 167g/0.37lbs