Bluetooth helmets Radio， Micro SD， HandsfreeHelmets with Bluetooth You can listen to all your music wirelessly.The modern and casual design of Bluetooth Helmets make it perfect to combine with all kinds of styles.Bluetooth Helmets can be used in any situation， especially for sports and that the cable does not interfere with your activities.The design of the Bluetooth Helmets can be folded completely and occupy practically nothing， not feel it's in the bag， backpack， pockets etc.Do not miss any calls with Bluetooth Helmets， helmets used as a speakerphone and answer all your calls without the need for any cables or removing the phone from his pocket.Bluetooth helmets incorporate FM Radio so you will not miss your favorite shows， plays all your favorite programs without the need for any wiresBluetooth Helmets MicroSD card support， connect your MicroSD card or your friends and enjoy thousands of songs， all from the same helmets without any cable.Compatible with any Bluetooth， iPhone， iPad， Android， Samsung， Sony， HTC， LG， Nokia etc. deviceContentBluetooth helmetsMicroUSB cable for chargingAvailable ColoursWhiteBlackBlueRedTechnical specificationsBluetooth Version: V2.1 + EDR Class IIFrequency: 2400.0-2483.5MHzsupports Bluetooth Headset， Handsfree， A2DP and AVCRPChipset: CSROperation range: 10 metersTalk Time: 2-3 hoursMusic duration time: Up to 7 hoursStandby time: Up to 250 hours