Information about this product [Function] The mini earphone is waterproof and dustproof, fast charging and small in size, [Small] Very small earphones, weighing 86g, give people a feeling of not wearing anything. [Battery] The battery of these earphones has a fast charge and a powerful autonomy, allowing more than 4 hours of use at 100% volume and up to 7 charges in the charging case. Product New wireless headphones with built-in Bluetooth. Water and sweat resistant. The earphones are smaller, more powerful, and waterproof and dustproof. With the headphones you can listen to music for 4 hours at 100% volume, the headphone case has an autonomy of 7 loads. The earphone box is very small and light, easy to carry, the earphones can be charged for 5 minutes for 2 hours of battery life, and 20 minutes for a full charge, this earphone has a built-in microphone, noise canceling and volume control.