SPORTS BLUETOOTH HAT ADJUSTABLE WIRELESS BLUETOOTH BASEBALL CAP1    BLUETOOTH: V4.0+EDR2 FREQUENCY: 2.4026GHZ-2.480GHZ3 TRANSMISSION DISTANCE: 10M/32.8FT4 TRANSMISSION DISTANCE OF MIC: ≤1 M/3.28FT5 FREQUENCY RESPONSE:85DB6 LION-BATTERY:3.7V/200MA7 CHARGING TIME:2 HOURS8 NUMBER OF CHARGE: > 1000

SPORTS BLUETOOTH HAT ADJUSTABLE WIRELESS BLUETOOTH BASEBALL CAP1    BLUETOOTH: V4.0+EDR2 FREQUENCY: 2.4026GHZ-2.480GHZ3 TRANSMISSION DISTANCE: 10M/32.8FT4 TRANSMISSION DISTANCE OF MIC: ≤1 M/3.28FT5 FREQUENCY RESPONSE:85DB6 LION-BATTERY:3.7V/200MA7 CHARGING TIME:2 HOURS8 NUMBER OF CHARGE: > 1000 TIMES9 STAND-BY TIME: 30 HOURS OR SO10 CONTINUOUS WORKING TIME: ABOUT 5 HOURSPACKAGE INCLUDED:1 X BLUETOOTH HAT WITH SPEAKER1 X USB CABLE FOR RECHARGE USE1 X INSTRUCTION MANUAL