marmenkina Baseball Cap Wireless Bluetooth Smart Cap Headset Headphone Hat Speaker Mic Cap Black Medium

Baseball Cap Wireless Bluetooth Smart Cap Headset Headphone Hat Speaker Mic Cap Description: Bluetooth Baseball Cap Bluetooth Canvas Hat Wireless Music Speaker Handsfree Features: 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. Specifications: Interface: Micro USB Bluetooth: V3.0 + EDR Frequency: 2.402GHz-2.480GHz Hat depth: 10cm,the length of the brim: 9.5cm,cap enclosure size: 56-68cm,wide brim: 17.5cm Transmission distance: About 10 meters Headphones transmission distance: Less than or equal to 1 m Lithium battery: 3.7V / 100mA Charging time: 2 hours Standby time: 6-8 hours Continuous working time: About 3.5 hours Key: Multifunction key, volume +/- buttons