?[THREE MODES HEATING]: ROCKBROS hand warmers is 3 heat setting and temperature adjustable. 30S heating rapidly. Red light(high mode)lasts 2 hours with temperature of 60-70?(140-158?), blue light (middle mode) with temperature of 50-60?(122-140?)lasts 3 hours, green light(low mode) with temperature of 40-50?(104-122?)lasts 5 hours. ?[DOUBLE LARGE-CAPACITY BATTERIES]: 7.4v 3000mAh large-capacity battery life for these heated gloves is longer and safer than ordinary 3.7v batteries on the market. The heating gloves with 2 rechargeable batteries ,Safe and effective US standard dual charger(ATTENTION: The first charge requires a full 10 hours, subsequent charges of about 5-6 hours are sufficient.) ?[TOUCHSCREEN & ANTI-SLIP PU PALM]: Conductive fabrics on the thumb and index fingertip of the rechargeable hand warmer allow for various mobile phone usage, which keeps you warm outdoors. The palm area is made of PU+Nylon anti-slip material, which is not easy to slip when riding safely. ?[SUPERIOR WARMTH & DOUBLE DRAWSTRINGS]: Fine fleece lining for skin-friendly warmth and comfort, Softly wrapped for lightweight warmth and effective heat retention. Elasticated drawstring design, double protection against cold air infiltration. Three sizes to different people( please measure the width of your hand before purchase) ?[BUY WITH CONFIDENCE]: ROCKBROS guarantees a secure purchase! If you encounter any issues, we offer a complete refund. Your satisfaction is our highest priority.