T40 Bluetooth Audio Receiver

Foreword

Thank you for purchasing this product. Please read this manual carefully before use for a better understanding of the product. Have a great experience!

Packing List

• Bluetooth audio receiver x 1
• Manual x 1
• 3.5mm audio head x 1

Buttons and Interfaces

The T40 Bluetooth Audio Receiver features the following buttons and interfaces:

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

First Time Using

1. The factory setting for the receiver's prompt tone is English. Press and hold the multifunction button for 3 seconds to turn on the device and enter the waiting state. The indicator light behavior is as follows: blue light flashes when receiving, blue light is always on when connected, red light flashes when transmitting, and red light is always on when connected.
2. This receiver can be used as an audio receiver via NFC or Bluetooth connection.

Key Function

Bluetooth Connection

1. Press and hold the multifunction button for 3 seconds to power on. The voice prompt will say "power on".
2. The receiver is in the state of waiting for pairing. 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 prompt will say "connected".
5. After use, press and hold the multifunction button for 3 seconds to power off. The voice prompt will say "power off".
6. The receiver will automatically connect to the device the next time it is powered on.

Bluetooth Connection -- 1 drag 2

1. Follow the steps in "Bluetooth Connection" to connect the receiver with mobile phone A. Then, turn off the Bluetooth of mobile phone A.
2. Connect the receiver with mobile phone B via Bluetooth.
3. Turn on the Bluetooth of mobile phone A. Mobile phone A will automatically reconnect to the receiver.
4. Mobile phone A and mobile phone B are now connected to the receiver simultaneously, completing the one-to-two connection.

NFC Connection

1. Press and hold the multifunction button for 3 seconds to turn on the phone, and the voice prompt will say "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.

Indicator Light

Power and Charging

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

Technical Parameters

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

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 1: 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.

NOTE 2: 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 requirement. The device can be used in portable exposure condition without restriction.

The device must not be co-located or operating in conjunction with any other antenna or transmitter.