Model: bt5.0 audioBluetooth audio: supportAudio external interfacel: SupportUSB powered: supportSound card function: supportImmersion gold craft: SupportBattery powered: SupportCharge while putting: NO supportKey control: NO supportVoice calls: NO supportMute control(MUTE): NO supportBluetooth version: Bluetooch V5.0Decoding format: HFPV1.7, A2DPV1.2, AVRCPV1.5, AVCTPV1.2AVDTPV1.2PRODUCT PARAMETERS IN: 3.7V-5V DCSignal to noise ratio :90DB harmonic distortion: -70dBCrosstalk: -86DBSupport configuration file :HFP/A2DP/AVRCP/AVCTPV/AVDTPV/Transmission distance :15MDecoding format :WAV+APE+FLAC+MP3Colour:blackMaterial:PCBPackage Contents:1 x Audio boardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.