Two-way communication functionSupports connecting up to 6 riders within a range of 1500 meters, allowing 2 people to talk at the same time.Clear sound qualityEquipped with advanced DSP noise reduction technology, it reduces wind noise and background noise, providing a safe and immersive riding experience.Convenient answeringThe Bluetooth 5.1 function can automatically answer or reject calls within 5 seconds, and it has an IP65 waterproof rating, suitable for all-weather use.Long-lasting battery lifeBuilt-in 850mAh rechargeable battery, providing 18 hours of intercom and 25 hours of music playback time, charging in just 2.5 hours.Wide compatibilityCompatible with a variety of helmets, the buckle design allows for quick assembly and disassembly.