About this item High-quality Stereo Sound: These Bluetooth headphones feature upgraded dynamic drivers and CSR chips, delivering high fidelity sound and rich, powerful bass. Bluetooth 5.3 technology facilitates quicker pairing and more stable connections, ensuring reliable calls and perfectly synchronized audio and video. Crisp Voice Calls: The built-in microphone with advanced CVC 6.0 noise cancellation technology effectively blocks out external noise, allowing for clear calls while driving or traveling. The button control on the right wireless earbud makes it easy to adjust the volume, skip tracks, and manage calls. Long-Lasting Battery: The powerful rechargeable battery provides up to 16 hours of continuous wireless listening or 250 hours of standby time with just 2 hours of charging, making these earbuds perfect for commutes or workouts. IPX7 Waterproof: With an IPX7 waterproof rating, nano-coating technology effectively prevents rainwater and sweat from penetrating, ensuring the l