OCOOPA Rechargeable Hand Warmers, 10000mAh Power Bank with PD & QC 3.0 Heating time 15 Hrs Perfect for Outdoor Activities Brilliant Winter Gift

Future-Proof Hand Warmers: Updated Version Hand Warmers from OCOOPA, H01PD series is a technical innovation, supporting PD 3.0 and QC 3.0 fast charging input & output. Charging time halved, using time doubled. Meanwhile insist on 5 sec heating, constant temperature, double-sided heat. 8-15 hrs Using time: Uses a modern gray-and-black design that exterior resembles supercar. Inside that modern aesthetic, you’ll find a formidable 10,000mAh rechargeable hand warmer offers you with up to 8-15 hours of warmth in cold winter, outpace your mates. Safe, Reusable Electric Hands Heater: Reusable hand warmers are more energy saving and cost saving than disposable hand warmers. High-precision resistance-capacitance components and UL certified li-ion batteries provide ultimate protection. The upgraded 10,000mAh Power lasts longer and stronger than ever. Ultra-fast Charge and Recharge: To get the hand heater full recharge in just 3.5 hours with the 18W USB C wall Charger or micro-USB QC charges. Beside,10,000 mAh battery supplies a super fast charge to your devices, so you can spend less time charging and have more time at your disposal. Excellent Ergonomic Design: The upper-wide, lower-narrow design is more suitable for grasping than the oval shape, fits the natural curve of your palm and anti-slip. High-grade silicone oil surface coating, soft and delicate to the touch, also has superior thermal conductivity.