Shenzhen Bo Lian Sheng BLS-B55 Bluetooth Transmitter/Receiver/USB Three-in-One User Manual

Mode 1: Default Transmission Mode Priority

This section describes the device's operation as a Bluetooth transmitter.

1. When powered by USB, the TX indicator light illuminates, and the device automatically enters pairing search mode. Turn on your Bluetooth headphones or speakers and set them to pairing mode. The device will automatically search and connect. The '[indicator A]' light will stay on, signifying a successful connection to the first device. (Note: A slow flashing power light indicates a re-connection state. To connect a new device, press the button to enter fast flashing mode.)

2. Double-clicking the button initiates another pairing search for a second device. Once connected, the '[indicator B]' light illuminates, confirming the second device connection.

3. Connect the TYPE-C cable to a power adapter and insert a 3.5mm audio cable. The device automatically recognizes the 3.5mm audio input. The device's working indicator light remains constantly on.

4. Connecting the TYPE-C cable to a PC is recognized as USB/Audio. The device's working indicator light flashes slowly, indicating it's functioning as a USB sound card. (USB/Audio Device: BLS-B55)

Visual representation of the transmitter setup: A USB-C port is depicted for '[USB-C Power]' input. A '[3.5mm TX]' audio input port is labeled. Indicator lights labeled '[indicator A]' and '[indicator B]' are shown. Devices connected include a TV, a desktop computer, and a set-top box. A button is labeled '[play/pause]' with additional functions indicated: '[search/reset]'.

Mode 2: Receiving Mode

This section describes the device's operation as a Bluetooth receiver.

1. When powered by USB, insert the '[RX Mode]' audio cable. The device automatically recognizes the 3.5mm audio output. The RX indicator light illuminates, and the device enters pairing search mode. On your mobile phone, tablet, or computer, search for the Bluetooth product name "BLS-B55" and connect. Upon successful connection, the '[indicator A]' light illuminates, confirming the first device connection.

2. Double-clicking the button initiates another pairing search. Once a mobile device connects successfully, the '[indicator B]' light illuminates, confirming the second device connection.

3. The equipment's working indicator light flashes slowly with a breathing effect (indicating 3.5mm audio output).

4. Short press the button to pause/play. Long press for 5 seconds to clear pairing records; the corresponding indicator flashes 3 times.

Visual representation of the receiver setup: A USB port is depicted for power input. A '[3.5mm RX]' audio output port is labeled. Indicator lights labeled '[indicator A]' and '[indicator B]' are shown, along with an '[RX Mode]' indicator. Devices connected include Bluetooth speakers, Bluetooth headphones, a phone, a tablet, a computer, old speakers, and an ordinary amplifier.

Parameters

Warning Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body.