Blue/Red LED indicating • Transmission distance: 10 Meter • Bluetooth type : Bluetooth 3.0 +EDR, /Frequency Response: 20HZ- 20KHZ • USB: micro USB • Power: 200MAH lith.ium rechargeable battery. • Play time : 5-7 hours • headband material: polyester. • Suits for both Men&Women • Package:1pc + USB charging cable+User manual. Operation Guide. -Press the on/off button about 5S till the LED light blink from blue-red. -Open the bluetooth in your phone and match with the beanie -After match successfully open the music in your phone, then you can enjoy the music with the hat, press the on/off button can pause it. -Press the on/off button, you can answer the phone. press again for up it -Long press the Forward button for volume +,long press the Back button for volume. -Press on/off button 2-3 seconds can back to dial the telephone。