Modular Bluetooth Helmets

MODULAR BLUETOOTH HELMETS Retractable sun visorQuick release visorFlow through ventilation systemInner lining fully removable and washableAntiscratch visorBluetooth 1.2 technology insures cellphone compatabilityInterference free communicationsLithium-Ion batteryBattery life: 4 hours continuous talk time and 100 hours standbyComplete recharge in 6 hoursUser replaceable batteryNoise cancelling micFull duplex communications with DSP filterSelf adjusting volumeWaterproof controls30' intercom and communications distanceStereo music streamingGlove friendly controlsMultifunction LED indicators110V/220V chargerOne button one hand flip up operationMetal latch mechanismABS thermoplastic shell HELMET SIZING CHART ADULT SIZE INCHES XSMALL 21 1/4" SMALL22" MEDIUM 22 7/8" LARGE 23 5/8" XLARGE 24 3/8" XXLARGE 24 3/4" YOUTH SIZE INCHES YOUTH SMALL 19 3/4" YOUTH MEDIUM20 1/2" YOUTH LARGE 21 1/4"