TECNO Buds 4 (BD04) - True Wireless Earphones

Product Overview

The TECNO Buds 4 (BD04) are true wireless earphones featuring Active Noise Cancellation (ANC) and multiple sound effects. They offer quick connection pop-ups, customizable sound profiles via the Welife App, and intuitive gesture controls.

Key Features:

• ANC Noise Cancellation Mode
• Multiple Sound Effects: Bass Booster, Treble Booster, Vocal Booster
• Quick Connection Pop-up with custom themes (TECNO HiOS14+ devices)
• Welife App integration for advanced features
• Gesture Controls for calls and music
• Game Mode for synchronized audio-visual experience
• Earphone Touch Key Customization

Getting Started

Powering On/Off:

• The earphones automatically power on when the charging case is opened.
• The earphones automatically power off when placed into the charging case and the case is closed.
• The charging case light flashes for approximately 4 seconds when opening/closing the case or when earphones are placed inside.

Connecting to Devices:

• For TECNO phones, auto pop-ups for earbud connection reminders are supported.
• Download the Welife App by scanning the QR code to add earbuds and access more features.
• Open the Welife App and tap "Add Device" to connect your earbuds.

Features and Controls

Noise Controller:

• Long press on the earphone touch area to circularly switch between "Noise Cancellation/Off/Transparency" modes.
• A quicker cycle switch between "Noise Cancellation/Transparency" can be set in the Welife App.

Sound Effects:

• Select preferred sound effects like Bass Booster, Treble Booster, or Vocal Booster within the Welife App.

Gesture Controls:

• During Calls: Double Tap to Pick up/Hang up.
• Not During Calls: Double Tap to Play/Pause music.
• Long Press on Earphones: Cycle through noise control modes.

Game Mode:

• Enable game mode in the Welife App for enhanced synchronization of audio and video, providing a better gaming experience.

Technical Specifications

• Earphone Battery: 37mAh * 2
• Charging Case Battery: 500mAh
• Charging Input: 5V/1A
• Earphone Input: 5V/0.12A
• Playback Time: 5.2H + 22.8H (with charging case)

Regulatory Information

FCC Caution:

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.

RF Exposure Statement: The device has been evaluated to meet general RF exposure requirements and can be used in portable exposure conditions without restriction.

EU Declaration of Conformity:

TECNO MOBILE LIMITED declares that this TWS Earphone (Model: BD04) is in conformity with Directive 2014/53/EU (RED). The full text of the EU declaration of conformity is available at: https://www.tecno-mobile.com/declaration/#/

Safety Precautions:

• Risk of explosion if the battery is replaced by an incorrect type. Dispose of used batteries according to instructions.
• Do not listen at high volume levels for long periods to avoid hearing damage.
• EUT Temperature: 0℃~+40℃ (with adapter).

Warranty Information

This warranty covers original TECNO products and does not apply to normal wear and tear, or damage caused by misuse. The warranty is for primary products only; additional or free products are not covered.

Company Information

Manufacturer: TECNO MOBILE LIMITED

Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19-25 SHAN MEI STREET, FOTAN NT HONGKONG

Copyright: TM and Copyright 2010-2022 TECNO Corporation. All rights reserved.