Best Customer Service:
If have any problems with our products or service, kindly please feel free to contact us, we will response and handle quickly.
In the first three times of charging, the battery has not been activated well, so it will works normally after the hand warmer was used three times.
1.Please Keep away from water;
2.Do not charging and heating simultaneously;
3.Please stored in a cool dry place when not in use;
4.Put on Cloth pouch to avoid burns when they get too hot for skin contact especially say on the wrists or behind knees where skin is thinner and more fragile.
Weight: 133g(N.W.), 246(G.W.);
Product Size: 102*59*24mm;
Package Size: 136*85*45mm;
Charging time: 2-3 hours;
Working Time: 6-12 hours/ 3-6 hours
Temperature: constant 107°F(42°C)/118°F(48)/131°F(55°C).
How to make it be warm?
Press the middle button for 5 seconds.
When the three lights on, reached the highest temperature of about 131°F(55°C).
Use your hands to make a friction, which can adjust the temperature.
1 X Lanyard;
1 X Micro USB cable;
1 X Instructions Manual;
1 X Cloth pouch with drawstring;
1 X 5200mAh hand warmer& power bank
The accessories are at the bottom of the box.
- ✅ COMFORTABLE & PORTABLE: Made of high-tech aircraft-grade aluminum and ABS material, thousands of polished exterior material, smooth and warmth. Handy carrying anywhere with pocket or bag while sporting, fishing, hiking, camping, skiing
- ✅ GOOD SECURITY: The optimized and upgraded circuit completely eliminate all kinds of poor contacts to ensure the lifetime of Four Heart reusable hand warmer and provide protection against over discharging, over charging, overheat, and short circuit
- ✅ FOURHEART HAND WARMER: Double side heating and 3 temperature settings: 107°F(42°C)/118°F(48°C)/131°F(55°C). Warm your hands in 5 seconds. Press the switch and instantly release the warmth for you. A perfect solution in cold weather
- ✅ LARGE CAPACITY: 5200 mAh lithium battery with USB charging port, more stable 2A input/output. It can also be used as a spare power bank to charge your electronic device when needed. Hand warmer & power bank Two-in-one, 3 indicators to let you monitor the remaining battery capacity and heating status
- ✅ WARRANTY: 45 days money-back & 2 years warranty, when you are not satisfied with our product, please don’t hesitate to contact us. BUY WITH CONFIDENCE