CEStore&reg; Lightweight Headband with Bluetooth 3.0 Headphone Headset Earphone Stereo Speakers Mic Hands Free for Gym Fitness Exercise Outdoor Sport,Compatible with Iphone Android Cell Phones-Black Fashion look Multi functionals headwear: rechargeble Li-ion battery, headband, bluetooth handset, handsfree microphone Designs for sports use such as yoga exercise gym running walking cycling fishing skiing etc Detachable headset, washes handband easily V3.0 + EDR Bluetooth version, available for most of devices with bluetooth function