Welcome to our store! This Egg Shell Hand Warmer is a versatile gadget that serves as both a hand warmer and a power bank. It is suitable for people of all ages and genders, including girls, boys, men, women, and the elderly. Safety is a top priority with this mini hand warmer, as it comes with built-in intelligent protection systems to prevent issues such as short circuits and overloads. It is shockproof, scald proof, skid proof, explosion proof, and emits no radiation, ensuring a safe and green heating experience. With two temperature settings, ranging from 47‑52℃ to 55‑60℃, you can adjust the warmth level to your preference. Additionally, a double click of the switch button activates the light function, adding a cozy ambiance. The compact size of this hand warmer makes it easily portable, ideal for various activities such as sports, fishing, hiking, camping, skiing, and traveling. The built-in 6000mAh rechargeable lithium battery provides long-lasting warmth and includes a USB output port for charging mobile phones and other devices. Product Details: - Material: ABS, PC, Aluminium Alloy, Silicone - Size: Approx. 101.8x76.5x64.5mm / 4.0x3.0x2.5in - Battery: 3pcs 18650 Lithium Batteries 6000mAh (Included) - Power: 10W - Hand Warming Endurance: Approx. 8H for 1st Gear, 6H for 2nd Gear - Charging Time: 3-4H - Input Voltage: 5V 2A - Color: As Pictures Shown - Weight: Approx. 358g / 12.6oz Package Includes: - 1 x Hand Warmer - 1 x USB Cable - 1 x Manual 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.