Built-in Bluetooth wireless transmission, hands-free call functionHands-free protocol (HSP V1.2 HFP V1.5)Stereo audio transmission protocol (A2DP V1.2)BT5.0 + EDR specification, the bass is more abundant and shockingWireless connection distance up to 10 metersSupports playing MP3 songs from U disk and TF cardSupports all audio inputs from external 3.5mm terminalsSupport FM automatic search, external super strong FM telescopic antennaSupports recyclable chargingWith colourful luminous flash effectBuilt-in Bluetooth wireless transmission, hands-free call functionHands-free protocol (HSP V1.2 HFP V1.5)Stereo audio transmission protocol (A2DP V1.2)BT5.0 + EDR specification, the bass is more abundant and shockingWireless connection distance up to 10 metersSupports playing MP3 songs from U disk and TF cardSupports all audio inputs from external 3.5mm terminalsSupport FM automatic search, external super strong FM telescopic antennaSupports recyclable chargingWith colourful luminous flash effect