<strong>Bluetooth4.0 Headset Flanging Hats Headphone Music Player Hat Earphone Acrylic Fibres Cap</strong><br /> <br /> <strong>Unisex Winter Dual Fabric Wireless Bluetooth4.0 Music Play Vertical Grain Cap</strong><br /> <br /> <strong>Features:</strong><br /> 1. The hat uses environmental friendly acrylic material, which is used in winter to keep warm and listen to music and made a call.<br /> 2. Built in microphone, the phone will send the call directly to your audio device, so that users can receive free of charge.<br /> 3. Built in ion rechargeable battery, USB cable charging, long standby time.<br /> 4. V4.0+EDR Bluetooth version, compatible with a variety of medium and high low-end Bluetooth devices, including mobile phones, for IPad, notebook computers, speakers, bracelets and so on.<br /> <br /> <strong>Specifications:</strong><br /> Bluetooth version: V4.0+EDR <br /> Frequency: 2.4026ghz-2.480ghz<br /> Transmission distance: approx. 10m/33ft<br /> MIC transmission distance: 1m/3.3ft<br /> Receiving sensitivity: < -80dBm<br /> Lithium ion battery: 3.7v/130mah<br /> Charging voltage: 5V 0.7A<br /> Charging time: 2.5 hours<br /> Standby time: 60 hours<br /> Continuous working time: about 3.5 hours<br /> Material: environmental protection acrylic fiber, inner velvet material<br /> Hat Size: head circumference: approx. 56 ~ 62cm / 22 ~ 24.4''<br /> Color: Grey<br /> <br /> <strong>Note: In order to protect the battery life, before use, please full charge.</strong><br /> Please allow 1-3 cm differs due to manual measurement.<br /> Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.<br /> <br /> <br />