Invisible Wireless Earbuds: The wireless earbuds weigh only 3g, which is comfortable and has excellent stable connection even for long-term use, and will not be a burden.Waterproof IPX5 Function & 1200 mAh Charging Box: Wireless earbuds with 1200 mAh charging box, which can be charged multiple times at the same time. In normal mode with a full charge, you can listen to music continuously for 5-7 hours, and the earphones can be charged 12-13 times. IPX5 waterproof, splash-proof and rain-proof, ensuring a longer service life, perfect for active scenes such as sports and exercise.Bluetooth 5.2 & Fast Auto Pairing: Turn on the earbuds to connect automatically, and only need an extra step to connect it to your phone. The latest Bluetooth 5.2 upgrade and EDR technology make the signal stronger and the transmission range longer, reaching 10m. In addition, the data transmission rate is higher, reducing delays and noise.High-quality HIFI sound effects & AAC encoding: It can play high-quality HIFI sound effects, with a high level of noise isolation, and supports optimized volume equalizer. A driver unit with ANC function is installed to provide better sound quality, less delay and express the entire range in a balanced way. In addition, AAC encoding is added to provide an immersive gaming and music experience.Innovation & Reduced Delay: Sound delay is greatly improved, and since the sound is always synchronized with the video, excellent playability and immersion in videos and music can be achieved.