Versatile Motorcycle Helmet Bluetooth Headset - The two-way intercom feature of the motorcycle helmet Bluetooth allows two riders to share their riding experiences and enjoy real-time intercom calls within a 600-meter (1,970-foot) intercom range, perfect for traveling with family or friends. Note: This motorcycle accessory only connects to helmet speakers of the same model and is not compatible with other brands of Bluetooth motorcycle helmets.Hi-Fi Stereo Sound and ENC Noise Control - Experience superior audio quality with our advanced 50mm pen speakers. Advanced ENC noise reduction technology reduces background noise, and the helmet Bluetooth headset delivers clear sound in any environment. Whether cruising the highway or exploring back roads, enjoy your favorite music, GPS navigation, and hands-free calls with clarity and accuracy.1000mAh Longer Battery Life - The Bluetooth motorcycle helmet is equipped with a 1000mAh lithium-ion battery and USB-C fast charging, delivering 50 hours of music sharing/calling/intercom, 70 hours of music listening, and 120 hours of standby time. The helmet headset fully charges in just 1.5 hours, ensuring all-day continuous use.BT5.3 and IPX6 Waterproof - Bluetooth 5.3 offers greater compatibility. The motorcycle Bluetooth headset is IPX6 waterproof, helping you cope with a wide range of weather conditions. With just one click, you can activate the C9 Voice Assistant for hands-free calls, music playback, and easy access to GPS directions.One-touch Voice Assistant Wake-up - The Bluetooth motorcycle helmet is equipped with an intelligent voice assistant system. Simply press the voice control button on the helmet speaker to easily wake up your voice assistant or Siri for action without taking your attention off the road. It also allows for hands-free automatic answering of calls, making your ride safer and more convenient. Large buttons allow you to control these functions with simple operation.