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Bluedio T4 User Manual

The Bluedio T4 is a great bluetooth headset, but it can be intimidating at first glance. This guide will help you get started with your new headset and make the most of all its features.

Bluedio Headphones Model: T4

Welcome to your new Bluedio headphones

We appreciate your choice of Bluedio headphones. Before use, please read this user manual carefully and keep for future reference.

Purchase verification

You can find the vitrification code by scraping the coating oft the security label that is affixed to the original packaging. Enter the code on our official website: www.bluedio.com for purchase verification.

Learn more and get support

Welcome to visit our official website:


Or to call us at 020-66062626-835.

Important Safety Information

  • DON’T use the headphones at a high volume for any extended period to prevent hearing damage.
  • DON’T use the headphones while driving or in any environment requiring your full attention. If necessary, use Bluedio communication headphones.
  • Keep the headphones, accessories and packaging parts out of reach of children to prevent accidents and choking hazards.
  • STOP using the headphones immediately if you feel sick while using the headphones.
  • DON’T expose the headphones to either extremely high or low temperatures (ideal: 10°C to WC).
  • The headphones have ANC (Active Noise Cancellation) function; please use it in safe environment, such as public transportation and noisy office, instead of the road to avoid accidents.
  • Removal of the chargeable battery in the headphones shall be conducted only by a qualified professional. DON’T try to replace the battery on your own.
  • If the headphones have incompatible issues with your laptop or desktop, please use the included audio cable to connect; Or buy a CSR4.0 and above Bluetooth adapter.

In The Box

Contents inside the Bluedio T4 box

Headphones Overview

Overview of the T4 headphones

Power On:

When the headset is off, press and hold the MF button until you hear “Power on”, and you will see the blue light blinks.

Power Off:

When the headset is on, press and hold the MF button until you hear “Power off’.


When the headset is off, press and hold the MF button until you hear “Ready to pair”, and you will see the blue light stays on

Answer/reject Phone Calls:

Receiving an incoming call, press the MF button once to Answer; press once again to End; Press and hold for 2 seconds to refuse.

Switch Phone Calls:

Receiving Call 2 in Call 1, press and hold the MF button to hold on Call 1 and answer Call 2; press and hold again to switch back to Call 1: press once to end the call.

Redial The Last Number:

Press the MF button twice to radial the last number.

Pressing the MF button

Bluetooth Pairing:

Make the headset enter pairing mode (see instruction “Pairing”), and turn on the Bluetooth feature of your phone, select “Bluedio T”; you will hear “device connected” after successfully paired.

Note: If pairing is not successful within 2 minutes, please repeat above steps to pair again.

Music Control

When playing music, press the Pause/Play button once to Pause; press once again to resume.

Pressing the play button

Volume- Button

Press once to reduce the volume; press and hold to skip to the previous track.

Pressing the volume down button

Volume+ Button

Press once to increase the volume; press and hold to skip to the next track.

Pressing the volume up button

Anc Switch

Push the ANC switch to turn on/off the ANC function; when it’s on, the green light will stay on. The ANC function will take effect after about 5 seconds.

Pressing the ANC switch

Language Selection:

Turn on the headset first, then press the MF button and the Volume- button once simultaneously lo select English/Chinese/ French/Spanish:

Selecting the language using the buttons on the side

Connect To Two Mobile Phones Via Bluetooth:

  1. Connect the headphones with phone 1, then turn off the headphones and the Bluetooth feature of phone 1.
  2. Turn on the headphones and make it enter pairing mode.
  3. Connect the headphones with phone 2
  4. Turn on the Bluetooth feature of phone 1, select “Bluedio T° in the Bluetooth list.

Line-in Music Playback

Use the standard 3.5mm Type-C audio cable to connect the headphones with your mobile phone and computer.

Note: Turn off the headphone before using this feature.

Line-out Music Playback

Connect the headphones with your mobile phone via Bluetooth first, then use the 3.5mm Type-C audio cable to connect the headphones with other headphones.

Note: Turn off the ANC function before using this feature.

Charger And Battery Charging Cable:

Please use the included Type-C charging cable to charge the battery, or it may damage the headphones. USB wall Charger: if using a USB wall charger, the output requires 5VDC, > 0.5A.

Charge The Headphones

The built-in battery is rechargeable and non-detachable. Don’t try to replace the battery on your own.

Turn off the headphones before charging. Use the included Type-C charging cable to connect the headphones with a computer or wall charger. While charging, the red light stays on.

Allow 1.5 hours for a full charge. Once fully charged, the blue light will stay on.


  • Bluetooth version: 4.2
  • Bluetooth operating range: up to 33 feet (free space)
  • Bluetooth transmission frequency: 2.4GHZ to 2.48GHz
  • Bluetooth profiles: A2DP, AVRCP, HSP, HFP
  • Audio resolution: [email protected] • Drivers: cD57mm
  • Impedance: 160
  • Frequency response: 15Hz-25,000Hz
  • Sound Pressure Level (SPL): 116dB
  • Standby time: about 650 hours
  • Bluetooth music/talk time: about 16 hours
  • Bluetooth music/talk time under ANC: about 16 hours
  • Pure ANC time: about 16 hours
  • Charging time: 1.5 hours for full charge
  • Operating temperature range: -10°C to 50°C only
  • Charging voltage/current: 5V/ v 500mA
  • Output power: 25mW+25mW

Specifications are subject to change without notice.

Bluedio T4 User Manual Image

Manufactured by Bluedio

(all Bluedio manuals)