Thank you for viewing! This product is brand new and unused. Immediate purchase is welcome. We will carefully package and ship it promptly. Please note that we also sell this product on other sites, so it may occasionally be out of stock or on backorder. Thank you for your understanding. Thank you for your consideration. 【Comfortable Fit Wireless Earphones】Small and delicate, extremely compact and convenient to carry. They fit snugly in your ears without causing discomfort or pressure. They won't easily fall out even with prolonged use, and ear fatigue is reduced. *40dB noise reduction is effective for low-frequency noise in environments with engine noise. Not all noise will be eliminated. They can be easily stored in your bag when you go out and won't get in the way at all. The ergonomically designed earphones are very compact and lightweight (approximately 4 grams). 【IPX7 Waterproof Performance & 4 Silicone Microphones】These fully wireless earphones achieve high waterproof performance, allowing you to use them with confidence during sports such as gym workouts, running, and fitness, even on rainy days. *Note: The charging case is not waterproof. If you have any problems with the product, please contact us through your order history. Contact method: "Account Service" -> "Order History" -> "Seller" -> "Ask a question". 【Instant Automatic Pairing & Excellent Compatibility】Bluetooth 6.0 has low latency, long battery life, and high interference resistance. Sound skipping, interruptions, delays, and noise are minimized, achieving stable communication. Compatibility with iOS, Android, Windows, and tablets has also been improved. Instant pairing steps: ① Take out the earphones. ② Turn on BLUETOOTH. ③ Automatic pairing. After the first pairing, on the second use, you can open the lid and automatically connect to your phone. 【Battery Level Display & Long Music Playback】The LED display allows you to easily check the remaining battery level of the charging case and earphones. It's easy to see at a glance, so you don't have to guess the battery level of the earphones. Note: When you put the earphones back in the charging case, they will automatically charge, and the LED display will flash while charging. When the earphones are fully charged, the LED display light on the charging case will automatically turn off. From a fully charged state, the earphones can provide up to approximately 6 hours of continuous talk time.