40mm Graphene Sound & CVC Noise CancellingEquipped with a 40mm large graphene diaphragm, it delivers rich, clear audio for music and calls. CVC noise cancellation filters out wind noise for crisp conversations.40-Hour Ultra-Long Battery LifeWith an 800mAh battery, it offers up to 40 hours of music playback, 30 hours of talk time, and 60 days of standby. Fast charging powers it in just 20 minutes.Universal Helmet CompatibilityWorks with most full-face, modular, and half helmets. It comes with both boom and soft mics to fit different helmet styles.IP67 Waterproof & DurableIP67 waterproof construction withstands rain, sweat, and harsh weather conditions, making it ideal for all-season riding.Hands-Free & Easy to UseThe RGB backlit controls are easy to operate with gloves on. Auto-answering calls keeps your hands on the handlebars for safer riding. | Cluzine | | Motorcycle Helmet Bluetooth Headset Headphones, 40mm Speaker, CVC Noise Cancel, 40H Playtime | Best Buy