Unbranded T40 Bluetooth Audio Receiver Instruction Manual

Unbranded T40 Bluetooth Audio Receiver

Product Information

Specifications

• Compliance: Part 15 of FCC Rules
• RF Exposure: Meets general RF exposure requirements
• Usage: Portable exposure condition without restriction
• Co-location: Must not be operating with any other antenna or transmitter

Product Usage Instructions

Warnings and Compliance

This device complies with Part 15 of the FCC Rules. Please ensure the following:

1. Do not cause harmful interference.
2. Accept any interference received.
3. Consult a dealer or experienced technician for assistance.
4. Avoid making changes or modifications without approval.

RF Exposure

• The device meets general RF exposure requirements, allowing for portable use without restrictions.

Co-location

• Avoid operating the device with any other antenna or transmitter to prevent interference.

FAQ

• Q: Can this device be used in areas with high RF exposure?
• A: The device has been evaluated to meet general RF exposure requirements, making it suitable for use in portable exposure conditions without restrictions.
• Q: What should I do if I encounter interference while using the device?
• A: Ensure that the device does not cause harmful interference and accept any interference received. If issues persist, consult a dealer or experienced technician for assistance.
• Q: Is it safe to modify the device for better performance?
• A: Avoid making any changes or modifications to the unit without express approval, as unauthorized modifications could void your authority to operate the equipment.

Foreword

• Dear user, thank you for purchasing this product.
• In order to have a better understanding of the product, please read this manual carefully before use.
• Have a great experience!

Packing list

Bluetooth connection — help
If the Bluetooth connection fails, please try the following methods to troubleshoot.

1. Before connecting, please make sure that the receiver or mobile phone is not connected to other Bluetooth devices.
2. If the connection fails for many times, please turn off the receiver and then turn it on again.
3. In the crash state, press and hold the switch for 8 seconds to restart.

NFC connection

1. Press and hold the multi-function button for 3 seconds to turn on the phone, and the voice prompts “turned on”.
2. Bring your NFC-enabled phone close to the receiver.
3. Click the pop-up window on the phone to complete the NFC connection.

Buttons and Interfaces

1. NFC
2. indicator light
3. 3.5mm audio interface
4. 2.5mm audio interface
5. TX/RX mode switch
6. TF card socket
7. Charging interface
8. MIC microphone call
9. Camera key
10. Short press previous song/ long press volume-
11. Short press a song/ long press volume +
12. Multifunction key

Power and Charging

• Power display: The status bar of the mobile phone can display the power information of the product (the mobile phone version needs to support this function)
• Low battery reminder: When you hear the voice prompt “low battery” (about 10% remaining battery), please charge it for 2 hours.

First time using

1. The factory setting of the receiver’s prompt tone is English.
   Press and hold the multi-function button for 3 seconds to turn on the device and enter the waiting state (the blue light flashes when receiving, the blue light is always on when connected, the red light flashes when transmitting, and the red light is always on when connected)

2. This receiver can not only be used as an audio receiver through an NFC connection or Bluetooth connection.

Key Function

Indicator light

Bluetooth connection

1. Press and hold the multi-function button for 3 seconds to power on, and the voice prompts “power on”.
2. The receiver is in the state of waiting for pairing, and the indicator light flashes blue for receiving and red for transmitting.
3. Turn on the phone’s Bluetooth, search for “T40” and connect.
4. The connection is successful, and the voice prompts “connected”.
5. After use, press and hold the multi-function button for 3 seconds to power off, and the voice prompts “power off”.

The receiver will automatically connect to the device the next time it is powered on.

Bluetooth connection — 1 drag 2

1. Please follow the steps of “Bluetooth connection”, after connecting the receiver with the Bluetooth of mobile phone A, turn off the Bluetooth of mobile phone A.
2. Connect the receiver with B mobile phone via Bluetooth,
3. Turn on the Bluetooth of mobile phone A, and mobile phone A will automatically connect back to the receiver.
4. A mobile phone and B mobile phone have been connected to the receiver at the same time, and the one-to-two is completed.

Technical parameter

• Item model number: T40
• Bluetooth version: 5.1
• Bluetooth protocol: HFP/A2DP/AVCTP/HID
• Input/output interface: 2.5/3.5mm audio
• Charging port: USB-C
• Frequency range: 2400MHz-2483.5MHz
• Frequency Response: 20Hz-20kHz
• Output load: 16-6000 adaptive
• Signal-to-noise ratio: >120dB
• Audio decoding: SBC
• Battery type: Lithium polymer battery
• Rated battery capacity: 200mAh 3.7V (1.48Wh)
• Charging limit voltage: 5.25V
• Battery full time: 1.5 hours
• Battery life: 8 hours
• Transmission distance: 15m

Safety warning

• This product has a built-in lithium battery, and it is prohibited to disassemble, impact, squeeze, or throw it into fire.
• Do not continue to use if severe swelling occurs.
• Do not place it in a high-temperature environment.
• Do not use the battery after immersion in water!

FCC STATEMENT

FCC Warning
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.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, according 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 under 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 the receiver.
• Connect the equipment to 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.

NOTE: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction.
The device must not be co-located or operating in conjunction with any other antenna or transmitter.

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