About this item High-quality Stereo Sound: These Bluetooth headphones with upgraded dynamic drivers and CSR chips focus on delivering high fidelity sound and rich, powerful bass. Bluetooth 5.3 technology allows for quicker pairing and more stable connections, ensuring stable 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. Button control on the right wireless earbuds makes it easy to adjust the volume, skip tracks, and manage calls. Long-Lasting Battery: The powerful rechargeable battery holds up to 16 hours of continuous wireless listening or 250 hours of standby time with just 2 hours of charging, perfect for any commute or workout. IPX7 Waterproof: With an IPX7 waterproof rating, nano-coating technology efficiently prevents rainwater and sweat from damaging the sensitive components of the wireless