ENHANCE GGBVFXT100BLEW BlueVIBE(R) FXT Bluetooth(R) Headphones with Microphone Specifications: • Bluetooth(R) enabled• Aux cable for non-Bluetooth(R) devices• IPX4 water-resistant design engineered for sports, running & other outdoor activities• Built-in microphone for handsfree calling• Expanding headband for adjustable fit & folding design for easy storage• Headband sizing 18"-20"• Operates up to 30ft• Charges in 2 hours for up to 8 hours of playback• Input: 5V/0.5A• 40mm driver• Sensitivity: 106 /-4dB• Imp: 18ohm • Freq resp: 20Hz-20kHz• Includes USB charging cable & aux audio cable• 3-year manufacturer's warranty UPC : 637836583935 Shipping Dimensions : 6.60in X 5.20in X 3.10in Estimated Shipping Weight : 0.75