Specification:
Product name: USB Bluetooth adapter & sound card
Pair name:M137
Bluetooth version:Bluetooth V5.2
Interface type: USB, AUX
Core functions: Bluetooth receiver / Bluetooth transmitter / computer external sound card
Body material: fire ABS
Transmission distance: 10 meters without obstacles
Size: 38 * 19 * 11mm
Features:
Bluetooth transmitting + receiving two in one.
Bluetooth 5.2 upgrade chip, faster transmission rate.
Driver-free, plug-and-play more convenient.
Solve the problem of damage to the original sound card of the computer, extended AUX audio interface easily connected to wired headphones / speakers / headset.
Plug into the car USB/AUX interface, connect cell phone Bluetooth, Bluetooth listening in seconds, navigation and hands-free calls three in one.
Let the traditional audio to achieve Bluetooth function, into a wireless audio, cell phones easily connected.
What is five in one: (receive when supporting calls):
When receiving, you can output audio to the speaker through the audio cable.
When receiving, you can output audio directly to the speaker via USB.
When transmitting, you can input audio to the adapter through the audio cable, and then transmit audio to the Bluetooth headset or speaker.
When transmitting, you can input audio to the adapter via USB, and then transmit audio to Bluetooth headphones or speakers.
Sound card function: computer USB to 3.5 headset, convert audio to headset 3.5 audio output via USB adapter
RX-receive mode:
Ordinary audio devices into Bluetooth audio devices in seconds.
Step 1: plug this device into the USB port power supply (5V USB interface), the device will automatically turn on, press the function key, the indicator light switches to blue and flashes rapidly, that is, enter the Bluetooth receiving state.
The second step: the 3.5mm audio connection cable into the device on the 3.5mm audio port audio cable other end into the playback device (headphones, speakers, etc.) of the AUX port
Step 3: Turn on the Bluetooth function of your phone (or computer), search for Bluetooth devices around you, find a device named M137 in the search results, find it and pair with it, after successful pairing, the indicator light on the Bluetooth receiver becomes a slow flashing state.
TX-transmit mode:
Convert the wired audio into Bluetooth signal and transmit it to the Bluetooth device output.
Step 1: Plug this device into the USB port for power supply, the device will automatically power on, press the switch button, switch to the red transmitting state, the device lights up red and flashes rapidly, that is, enter the Bluetooth search state.
Step 2: Insert the 3.5mm audio connection cable into the device 3.5mm audio port, the other end of the audio cable into the output interface of the audio of the TV, projector, cell phone, tablet, MP3, CD player and other devices (such as the headphone output interface of the device).
Note: The computer can be used directly plugged into the USB, if not, please set the sound card output inside the sound settings
Step 3: Bluetooth audio receiving devices (such as: Bluetooth headphones, Bluetooth speakers, etc.) will be switched on to the pairing state, the device will automatically pair, pairing success, the red light slowly flashing.
Package includes:
1x Bluetooth 5.2 audio adapter
1x 3.5mm audio cable (1M/39 inches)
1x Instruction manual












