Crystal Clear HD Stereo Audio: 44mm HD Speaker. Big Sound. Upgraded 4 sound effects with direct, bass, rock, and pop. R16 Pro motorcycle helmet Bluetooth headset provides immersive listening for your ride | 10-Way 2KM Live Intercom: For up to 10 riders intercom at a range of up to 2km/1.24mi. 5s quick easy pairing with other brands. Stable connectively, and longer distances helmet communication system | Multitasking Audio: Dual Qualcomm Bluetooth chips, R16 Pro motorcycle headset achieves intercom and music or GPS simultaneously, innovative dual-function parallel breakthrough | Advanced Noise Reduction: Eliminate almost 99% of noise, share clear communication or music with your passenger even at speeds up to 120 km/h with our helmet headphones | IP67 Waterproof: No matter what environment the motorcycle Bluetooth headset is in, its IP67 high waterproof performance can withstand the test and keep you connected. Rainproof, snowproof | Easy Installation & Glove-Friendly Design：R16 Pro helmet Bluetooth headset comes with both boom and soft microphones, easily mounting to the side of your helmet. The 1000mAh battery charges fully in just 1.5 hours. Its large, glove-friendly button design ensures easy operation of the helmet intercom while riding