Battery operated mask ventilator for JT-Spectra masks with ON/OFF switch. (fit for all JT-Spectra models) By attaching the fan, the inside of the mask is completely ventilated, this prevents the glasses from fogging up. Highly recommended for longer games or in high heat or rain. The direction of the air flow of the fan can be adjusted. The delivery includes batteries. JT Spectra mask ventilator easy installation ON/OFF switch optimal ventilation for optimal visibility suitable for all JT Spectra models Delivery incl. batteries Color: black