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Product Parameter·Product name : Bluetooth Decoder.·Product model : XY-WRBT.·Working voltage : 3.7~24VDC·Bluetooth version : 5.0.·Transmission distance : 15m ( visible and unshielded)·Signal-to-noise ratio : ≥90dB·Distortion : ≤ -70dB·Number of vocal tract : Dual Channel ( Stereo ).·Audio interface : 3.5mm audio interface.·Modular protection mechanism : Back-connection protection of power supply . Operation InstructionsAfter switching on the power supply , the blue indicator flashes and enters the Bluetooth mode;after broadcasting theprompt sound , it enters the matching mode and waits for matching;after broadcasting the prompt sound , the mobile Bluetooth searches for XY-WRBT ( the name of the power amplifier board device ) , clicks on the XY-WRBT connection , and plays the prompt soundafter the connection is successful , and when the indicator light is long , the mobile music can be played.When playing music , the indicator light flickers slowly;after Bluetooth disconnects , the amplifier board prepares for the next pairing , and plays the prompttone and enters the pairing mode to wait for the pairing.Main MattersCautions for Power Supply with 3.7V Lithium Battery1.When powered by batteries , the battery voltage isless than 3.3V decoder board automatically shuts down , and the contacts are switched on/off for 2 seconds after re-energizing or full charging2.When using batteries to supply power , if the voltage of batteries is too low , there may be nourishingnoise . In this case , the batteries need to be charged3.Because there is no charge protection circuit for lithium batteries on decoder board, it is recommended to use lithium batteries with protection board.4.If your rechargeable battery supports Micro USB charging directly,you can use Micro USB charging directly to the battery. 1.Micro-USB mobile phone charger , 3.7-4.2V lithium battery and 3.7-24V DC power supply can be used for power supply.2.Short on/off contact 2 seconds can set decoder board on/off , for battery power supply , When not in use , power-saving , convenient refitting.Installation dimension.
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