Fangrui Product Details Fangrui Product Details Fangrui Product Details 1.parameter Characteristics Power Supply 3.7-5v Snr 90db +n -70db Crosstalk -86db Material:pcb Color:black Dnr 91db Support Profile A2dp/avctp/avdtp/avrcp/hfp Los 15m 2.interface Details Usb Powered Universal Micro-usb 5v Power Supply 3.7-5v Supply Pad External 3.7-5v Lithium Battery Power Conversion Led Indicator Bluetooth Mode Long Blue Light 3.5mm Stereo Audio Interface Standard 3.5mm Interface, Output Stereo , Plug In Headphones, Connect Amplifiers And Other Devices Instructions: After The Power Is Turned On, The Blue Indicator Lights Up And Enters The Bluetooth Mode; The English The Bluetooth Device Is Ready To Pair Is Displayed, Indicating That The Bluetooth Mode Is Entered And Waiting For Pairing; The Vhm-314 Searched By The Mobile Phone Bluetooth Is The Device Name Of The Decoding Board. Click On The Connection, The Decoder Board Prompts The Bluetooth Device Is Connected Successfully, Indicating That The Decoder Board And The Mobile Phone Are Connected Successfully, You Can . Package Contents: