Description: 100% Brand New and High quality. Could activate SIRI on ios device for commands. Set-in MIC, available for cell phone to transmit the speaking phone to your audio devices directly so that the user can hand free answering phone up via the device. Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time. Headphones are removable for headwear washing. With Over-Current, Overcharge & Overheat Circuit Protection Design on PCB. Specification: Material:Acrylic fibre. Color:Black,Dark Gray,Blue,Red,Rose Red. Head circumference:54-65cm. Height:20cm. Gender:Unisex. Wireless Version: V5.0. Frequency: 2.402 GHz-2.480 GHz. Transmission Range: 10M 33ft. Rated Power: RMS 10mWx 2. Speaker Unit: 32\u03a9 30mm. Battery: 3.7V 180mAh Rechargeable Li-polymer Battery. Standby Time: Over 120 Hours. Play Time: Over 12 Hours. Charge Time: 2H. Note: 1. Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. 2. The colors may be different as the difference display. Please understand. Package Included: 1 x Bluetooth Smart Beanie Hat. 1 x USB Cable. Please kindly Note: Items will be repackaged to save your shipping charge & to be environmentally friendly. We guaranty the item will be protected well in bubble bags, No retail box