Enjoy instant and lasting refreshment, even during the most intense activities! Perfect for outdoor and indoor sports: tennis, yoga, fitness, jogging, hiking, or simply relaxing in the summer. An ultra-fresh and soothing sensation on your face, neck, or wrists – in one simple step. Easy to use: lightly moisten them, gently wring out excess water, and you're ready! Their cooling effect activates instantly with water. Lightweight, ultra-soft, and ultra-thin – designed for maximum comfort without weighing you down or irritating your skin. Portable: use them dry or wet, stored in their practical case with a carabiner for easy attachment (bag, backpack, bike, etc.). Easy cleaning: hand washing is recommended to preserve their performance and softness day after day. This product is sold by xiaosong on behalf of a third-party seller. This is a compatible product. None of the products offered in this store come with two batteries; they are powered by a single battery. Note: 1. Due to variations in brightness and screen settings, the product color may differ slightly from the images shown. 2. Please allow a measurement error of 1-3 cm due to manual measurement. 3. Please check that the size is suitable before purchasing. Thank you for your understanding!