SpecificationsColor: Blue，Black，Gold，Silver，RedSize: 60x60mm(DiameterxHeight)Loudspeaker size: 45mm 4�� 3WBluetooth version: V3.0+EDREffective distance: 10mPower supply: 5VBattery capacity: 520mAhS/N: ��95DbDistortion: ��0.5%Play time: 2-3 hoursCharging time: 3 hoursSupport: Bluetooth， FM Radio， TF cardInterface: TF card +AUX input interfaceUsage instructionsPress ON/OFF key to Blutooth mode. Blue LED will flash 6 times. Short press Play/Pause key， blue and red LED flash alternately.Follow the operating instruction of your mobile phone for Bluetooth and search S10 Bluetooth Speaker.Press "Yes" or "Confirm" to confirm this action.Enter password 0000 and press "Yes" or "Confirm".(Note: If the connection is successful， blue LED will flash.If the pairing is unsuccessful， the LED blue and red will still flash alternately. You need to pair again.)Flashing instructionsGreen LED flash: In TF card MP3 modeGreen LED ON: TF card MP3 in pause or in AUX modeBlue LED flash: In Bluetooth modeRed and blue LED flash alternately: Bluetooth pairingRed LED ON: ChargeRed LED OFF: Full chargeRed LED flash: Low powerPackage included1 x Speaker1 x USB cable1 x User manual