Smith Optics Unisex Outdoor Tech Wireless Audio Chips Black One Size Create the soundtrack to your next shred session with the Smith Optics&reg; Outdoor Tech Wireless Audio Chips. Bluetooth 4.0 chipset. Fits easily into a helmet-headphone adapter. Glove-friendly controls mean you can stay warm while operating. Voice prompts for tones and volume control. Battery gauge informs you of power level. Track selection. Siri compatible. Rechargeable battery features 10 hours of continuous play or three days of real world, on-mountain use. Includes:&#8226; Audio chips.&#8226; Headphone adapter with control section.&#8226; USB charger. Imported. Measurements: Width: 2 in Height: 2 in Depth: 1&frasl;2 in Weight: 3.4 oz This product may have a manufacturer's warranty. Please visit the ma