Product Parameters:Bluetooth Solution/Chip Model: Jerry AC6976Bluetooth Version: Bluetooth V5.0Support Protocol: A2DP1.3, AVRCP1.6, HSP1.2, HFP1.7Transmission Distance: 10-15 Meters Without BarriersSpeaker Material/Specification: High-Profile True Copper Ring Speaker/13mm/16Ω±15%Frequency Response Range: 20Hz-20KHZCharging Port: LightningCharging Voltage/Current: 5V/1ACharging Time: 1 HourHeadphone Capacity: 30mAhCharging Compartment Capacity: 300mAhMusic Playing Time (100% Volume): About 3-4 HoursStandby Time: 120 HoursProduct Manual:Click To Play And Pause, Double Click To Add And Subtract Volume, Triple Click Up And Down,Long Press SIRI For 2 Seconds, Long Press For 5 Seconds To Turn On/Off, IOS Mobile Phones Support Open Cover Pop-Up Windows,Android Mobile Phones Support Triple True Display, Cradle Chaging Button (Circle) Click The Headset To ChargePacking List:Bluetooth Headset*2Charging Compartment*1Data Cable*1Manual*1