High-definition LED digital display - Real-time display of intercom connection, music sharing, playback status, and battery level. The intuitive and clear interface provides a convenient operation experience.Stable Dual Intercom System - Bluetooth 5.4 supports full-duplex intercom with a range of 300–500 meters, allowing for clear calls at speeds of up to 120 km/h, ensuring safe communication during cycling.Extremely Long Battery Life - A built-in 1000mAh lithium battery offers up to 270 hours of standby time, supporting approximately 15 hours of calls, 25 hours of music playback, and 12 hours of music sharing, perfect for long-distance cycling.Weatherproof Design - IPX6 waterproof rating ensures ride comfort in wind, rain, and dust. A neural network noise reduction IC ensures clear calls even in noisy environments.Dual Device Connectivity & Easy Operation - Supports simultaneous connection of two phones for easy management of calls, music, and navigation. Physical buttons ensure accurate operation even with gloves, and included hard, soft, and combination microphones are compatible with a variety of helmets.