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Qudo QDSLTMC12B Wireless Earbuds Instruction Manual

Qudo QDSLTMC12B Wireless Earbuds FEATURE


Qudo QDSLTMC12B Wireless Earbuds

Qudo QDSLTMC12B Wireless Earbuds PRODUCT

About Qudo

QUDO is a name that represents years of accumulated expertise and knowledge. They pay close attention to consumer needs and the market in our area of specialization. A close relationship with their clients enables them to stay ahead of the competition and create items that are in high demand. They made the rapid decision to design the first modular charging pedestal when the market for electric vehicles took off. A versatile pedestal that can be adjusted to fit any charging station. They enjoy writing history, and now a fresh chapter has begun. They are happy to introduce QUDO, a brand-new charging station that is 100% app free, original, straightforward, and lovable.

Product OverviewQudo-QDSLTMC12B-Wireless-Earbuds-Instruction-Manual-1

Pairing the earbuds

(Initial setup and connection with Bluetooth device)

NOTE: Initially each earbud must be connected to the mobile device individually

  1. Take out one of the earbuds from the charging case, press and hold the multi-function button until the indicator flashes red & blue simultaneously to enter pairing mode.
  2. Turn on the Bluetooth function on a mobile device. Then select “QDSLTMC12B” from the device available list to pair.
  3. Once pairing is successful, the indicator will flash in blue on the side of the earbud. Bluetooth status on the mobile screen will also display “Connected” under the name “QDSLTMC12B”.
  4. Take out the other earbud from the charging case, press and hold the multi-function button on this earbud until the indicator flashes in blue & red to enter pairing mode. Select “QDSLTMC12B” in the Bluetooth pairing menu to connect this earbud to the device. The indicator will flash in blue with a beep tone once the pairing is completed.
  5. Now both earbuds are ready to be used as a stereo pair of earbuds. Note: Music volume is controlled by mobile device. 6. To turn off the earbuds, press and hold the multi-function button on either earbud until the indicator light flashes in red with a “disconnected” voice prompt. Both earbuds will turn off together. Alternately, put both earbuds back into the charging case. 

(Continue to use with previously connected Bluetooth device)

  1. Turn on the Bluetooth function on a mobile device. Select “QDSLTMC12B” from the device available list to pair.
  2. Take out either side earbud. Press and hold the multi-function button of the earbud until the indicator flashes blue. Then repeat the step on the other side earbud. Bluetooth status on the mobile screen will display “Connected” under the name “QDSLTMC12B” once the pairing process is successful.
  3. Now both earbuds are ready to be used. Music volume will be controlled by the mobile device.

(Using individual earbuds)

  1. Take out either side earbud from the charging case. Press and hold the multi-function button until the indicator flashes blue.
  2. Turn on your mobile device’s Bluetooth function and search for the name “QDSLTMC12B” and connect it. Bluetooth status on the mobile screen will also display “Connected” under the name “QDSLTMC12B”.

Using the left earbud for handsfree phone calls

  1. The left earbud can be used to answer an incoming phone call hands-free when it is connected to a mobile phone. (NOTE: Only the left side earbud will work for phone calls).
  2. An incoming call beep tone will go off when a phone call comes in. Short press the multi-function button to answer the incoming call through the left side earbud and press it again to end the call.

Music playing function

  1. While music is playing, press the multi-function button once to pause the music, and press it once again to start playing again.
  2. Press the multi-function button twice to skip to the next music track during music playback.
  3. Adjust the volume of music through the volume control keys on the phone. 

Charging operation

Initial use of the earbuds

  1. With the earbuds placed inside the charging case, connect the charging cable (included) to the charging port on the back of the charging case and the other end of the charging cable to a workable USB power source.
  2. Unit will be ready to be used once all four power indicator lights on the back of the charging case are solid blue. (Approximately 2.5 hours).

Recharging earbuds/charging case

  1. Place the earbuds inside of the charging case. The indicators on the earbuds will light up in red when the charging process is initiated.
  2. The red indicator light on the earbuds will be “on” during the charging process and will turn blue then turn off once both earbuds are fully charged. (Approximately 1 hour). Charging time may vary based on the battery level of the charging case.
  3. To check the battery level of the charging case, Press the “check battery button” inside the charging case to review the battery status indicators on the back of the charging case.
  4. Recharge the charging case by connecting the USB charging cable (included) to the charging port on the back of the charging case and the other end to a USB power source. (Approximately 2.5 hours).



Production specification

  • Model: QDSLTMC12B
  • Bluetooth controller: CSR64110 V4.2 version
  • Support A2DP decoding
  • Operating distance: Up to 10 meters (distance may vary due to external electronic interference and obstacle)
  • Working frequency: 2.402GHz ~ 2.480GHz
  • Transmit power: CLASS 2, MAX 4dbm
  • Audio decoding mode: SBC
  • Input voltage: DC5±0.25V/1.0A
  • Battery capacity (Earbuds): 3.7V/50mAh per side
  • Battery capacity (Charging Case): 3.7V/400mAh
  • Operating voltage: 3.7V (3.3-4.2V)
  • Charging time (Earbuds): ≤1H
  • Speaker specification: 32Ω±15%
  • Playtime for continuous music: ≤4H
  • Talking time: ≤4H
  • Standby connection time: ≤100H
  • Operating current: ≤25mA
  • Matching name: QDSLTMC12Bv
  • Matching password: 0000
    (Android version 2.1 and below)

Package Contents

  • Bluetooth Earbuds x 1 pair
  • Charge Case x 1
  • USB Charging Cable x 1
  • Earbud Adaptor x 3 pair (Size: S, M, L)
  • Ear Hook x 3 pair (Size: S, M, L)
  • Instruction Manual x 1

FAQS About Qudo QDSLTMC12B Wireless Earbuds

How long are wireless earbuds good for?

Longer battery life is often seen with larger headphones. The majority of wireless earbuds have a five to six-hour battery life on a single charge, however, some expensive headphones are rated to last all day.

How long do wireless earbuds take to charge?

roughly 2 hours

What is the typical lifespan of a set of wireless earbuds?

A good pair of wireless headphones should endure for ten years or more. But eventually, battery deterioration renders all Bluetooth earbuds and headphones ineffective. Most pricey, high-end versions have a 10-year lifespan.

What causes wireless earphones to malfunction?

In-ear earbud damage is frequently caused by water and dampness. When exercising or going for a walk in the rain, using earbuds may also cause an excess of wetness.

How long should I use my earbuds?

If you don’t use your earbuds for too long or too loudly, noise-induced hearing loss caused by them is completely avoidable. The 60%/60-minute rule is advised by physicians: Play video games, watch movies, or listen to music at no more than 60% of the maximum volume. You should only wear earbuds for no more than 60 minutes at a time.

How should wireless earbuds be cared for?

Clean your earbuds or headphones frequently. Ideally, you should use a mildly moist towel to clean the tips of your earbuds or headphone earpads at least once every week. Ensure that your gadget is turned off and the headphones are unplugged. Dry them completely right away with a gentle cloth.

Are wireless earphones battery-operated?

Wireless headsets need a different source of power than wired headsets, which are powered by a sound source. The batteries differ in size or shape depending on the Bluetooth headset type, however, they typically work with rechargeable lithium batteries.

How can I tell when my earbuds have finished charging?

Through the battery indicator, you can determine the condition of the earbuds and charging case. The charging status of the earphones is shown via the earbud battery indicator, which is housed inside the charging case.

How far can you go with wireless earbuds?

the equivalent of 30 feet

Do wireless earbuds gradually lose volume?

Headphones may gradually lose volume in addition to normal wear and tear.

How long can you wear earbuds?

When analyzing headphones and hearing loss, the length of exposure to noise is also a crucial consideration. As a general guideline, only spend a total of 60 minutes each day using MP3 players at volumes up to 60% of their maximum, advises Dr.

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