Experience high-quality sound with the TWS Wireless Earphones Mini Earbuds Stereo Headphones. These earbuds come in a sleek black color and are waterproof with an IPX7 rating. With Bluetooth V5.1 and noise cancellation features, you can enjoy uninterrupted listening pleasure. The charging box has a battery capacity of 4000mAh with a protection board, and the earbuds have a talk time of 4-5 hours and a standby time of 650 hours. The earbuds have a built-in microphone for hands-free calling and HD voice. These features make the TWS 5.1 a must-have for people looking for a high-quality earbud experience.