Teufel REAL BLUE IN - User Manual

Questions and Answers

M
Melissa UnderwoodJul 27, 2025
What to do if my Teufel Headphones don’t connect with mobile device?
- R
  rcrawfordJul 28, 2025
  If your Teufel Headphones aren’t connecting to your mobile device, here are a few things you can try: * Verify that your mobile device supports Bluetooth technology. * Turn the Bluetooth feature off and then on again on your mobile device. * Delete your Teufel REAL BLUE IN In-Ear headphones from the Bluetooth list on your mobile device and connect again. * Move your mobile device closer to the headphones, away from any interference. * Try connecting a different mobile device. * Clear the headphones pairing list and connect again.
B
Brian RobertsonJul 31, 2025
Why Teufel Headphones have no sound?
- R
  Russell Snow Jr.Aug 1, 2025
  If your Teufel headphones have no sound, try the following: * Ensure the audio track is playing on your mobile device. * Check the headphone's charging status by connecting it to the USB charging cable and charge if necessary. * Increase the volume on your mobile device. * Move your mobile device closer to the headphone (within 10 meters) and away from any interference or obstacles. * Try using other music sources or connecting other mobile devices to test the headphone.
J
Jordan MccoyAug 5, 2025
How to fix poor sound quality on Teufel Headphones?
- E
  Elizabeth MendezAug 5, 2025
  To address poor sound quality on your Teufel Headphones, consider these steps: * Ensure that both headphones fit securely in your ear. * Try using a different music source to see if the issue persists. * Connect another mobile device to rule out device-specific problems. * Move your mobile device closer to the headphones (within 10 m) and away from obstructions. * Clear any debris or wax buildup from the headphones and nozzles.
C
Carl McdonaldAug 9, 2025
What to do if my Teufel Headphones don’t charge?
- T
  Theresa JacksonAug 9, 2025
  If your Teufel Headphones aren’t charging, consider these steps: * Ensure the headphone is properly connected to a USB power source. * Check for and remove any dirt or debris covering the charging conductors within the case or on the headphones. * If the headphones have been exposed to extreme temperatures, allow them to return to room temperature before attempting to charge again.
T
tracijohnsonAug 13, 2025
Why Teufel Headphones don’t power on?
- K
  kchavezAug 13, 2025
  If your Teufel Headphones don’t power on, start by charging the headphone. Also, ensure that the headphone is not in standby mode, and wake it up.
M
Madison LongAug 17, 2025
What to do if Eartips falling off from Teufel Headphones?
- J
  james87Aug 17, 2025
  If the eartips are falling off your Teufel Headphones, securely attach the tips to the headphones.
J
Jerry LeonardAug 22, 2025
How to clear the BT device list on Teufel Headphones?
- Y
  ypalmerAug 22, 2025
  To clear the Bluetooth (BT) device list on your Teufel Headphones, press and hold the volume down button for 10 seconds when the headphones are in the off stage.

Summary

General Information

Notice

Information subject to change without notice; no liability is assumed by the manufacturer.

Right of Return

Conditions for exercising the 8-week right of return, requiring original packaging.

Complaints

Process for handling complaints, requiring an invoice number for processing.

For Your Safety

Proper Use

Proper usage of headphones, emphasizing adherence to manual for safety and reliability.

Safety Notes

Explanation of Terms

Defines signal terms like WARNING, CAUTION, NOTICE, and informational symbols used in the manual.

Danger of Suffocation

Warning about suffocation risk for children with packaging film and small parts.

Risk in Road Traffic and at Work

Warning about headphones dampening external noise, affecting awareness in traffic or work.

Risk of Explosion;Fire

Warning about explosion/fire risk from lithium batteries if handled improperly.

Radio Wave Interference

Warning about radio waves potentially affecting other sensitive devices.

Hearing Loss Risk

Caution about potential hearing loss from prolonged listening at high volumes.

Risk of Damage

Notice regarding potential damage from improper handling, moisture, heat, or mechanical influences.

Disposal

Electrical Waste Disposal

Guidance on environmentally friendly disposal of old electrical equipment.

Battery Disposal

Information on proper disposal of batteries and rechargeable batteries at designated collection points.

Trademarks

Bluetooth Trademark

Identifies Bluetooth as a registered trademark owned by Bluetooth SIG, Inc.

Qualcomm aptX Trademark

Identifies Qualcomm aptX as a product of Qualcomm Technologies International, Ltd.

1. Introduction

2. Whats in the box

3. Product Overview

Control Buttons

Details the functions of the Multi-Purpose, Volume Up, and Volume Down buttons.

Interface Features

Describes the USB charging slot, LED indicator, and built-in microphone.

4. Getting Started

4.1 Switching On or Off

Instructions on how to power the headphones on and off.

4.2 Choosing Eartips

Guidance on selecting the appropriate eartip size for optimal fit and audio performance.

4.3 Connecting with the Headphone

Steps to pair the headphones with a Bluetooth-enabled device.

ShareMe Feature

Explains the ShareMe feature for sharing audio between two sets of headphones.

4.4 Teufel Headphones App

Information on downloading and using the Teufel Headphones app for enhanced features.

5. Using the Headphones

Multi-Purpose Button Functions

Details operations for power, playback control, calls, pairing, and voice assistant.

Volume Up Button Functions

Explains volume adjustment and enabling the ShareMe feature.

Volume Down Button Functions

Explains volume adjustment and activating/deactivating auto-play features.

6. Charging

Charging the Headphones

Procedure for charging the headphones using a USB cable and operating temperature guidelines.

Charging Time and Battery Life

Information on full charging time and the resulting battery life.

Checking Headphone Battery Level

Methods for checking the battery level, including device display and app usage.

7. Troubleshooting

Common Solutions

Lists common checks and solutions for headphones and charging cable issues.

Headphones Dont Power On

Troubleshooting steps for when the headphones do not turn on.

Headphones Dont Connect

Steps to resolve issues with connecting headphones to a mobile device.

Headphones Dont Charge

Solutions for problems encountered when charging the headphones.

Clear Bluetooth Device List

Instructions to clear the headphone's Bluetooth pairing list.

No Sound

Troubleshooting steps for when no audio is heard from the headphones.

Poor Sound Quality

Solutions for addressing issues related to poor audio quality.

Eartips Falling Off

Guidance on securely attaching eartips to prevent them from falling off.

8. Technical Data

9. Declaration of Conformity

Teufel REAL BLUE IN Specifications

General

Connectivity	Wireless
Bluetooth	Yes
Driver Size	40 mm
Frequency Response	20 Hz - 20 kHz
Bluetooth Version	5.0
Microphone	Yes
NFC	No
Noise Cancellation	Active Noise Cancellation
Sensitivity	96 dB
Impedance	32 Ohm