SLU0049 - Headphones Quer - Free user manual and instructions

Product Type	Wireless Over-Ear Headphones
Model	SLU0049
Brand	Quer
Dimensions	Approx. 20 x 18 x 8 cm (folded)
Weight	Approx. 250 g
Power Supply	Built-in rechargeable lithium-ion battery, 500 mAh
Charging Time	Approx. 2 hours
Battery Life	Up to 20 hours of playback
Connectivity	Bluetooth 5.0, 3.5 mm audio jack (wired mode)
Driver Size	40 mm
Frequency Response	20 Hz - 20 kHz
Impedance	32 Ohm
Microphone	Built-in omnidirectional microphone
Controls	On-ear buttons: volume, playback, call control
Main Functions	Wireless music streaming, hands-free calling, active noise cancellation (ANC), voice assistant support
Cleaning and Maintenance	Wipe with a soft, dry cloth. Do not use liquids or cleaners. Store in a cool, dry place.
Safety Warnings	Do not use at high volume for extended periods to prevent hearing damage. Keep away from water and heat sources.
Spare Parts and Repairability	Replacement ear cushions and charging cable available. Repairs should be done by qualified personnel.
General Information	Supports SBC, AAC codecs. Foldable design for portability. Includes USB charging cable and audio cable.

Frequently Asked Questions - SLU0049 Quer

How do I pair my Quer SLU0049 headphones with a smartphone?

Turn on the headphones by pressing and holding the power button until the LED blinks blue and red. Then, on your phone, enable Bluetooth and select Quer SLU0049 from the list. Once connected, the LED will turn solid blue.

What is the battery life of the SLU0049?

The battery life is up to 20 hours of continuous playback at moderate volume. Charging takes approximately 2 hours using the included USB cable.

Can I use the headphones while charging?

Yes, you can use the headphones in wired mode via the 3.5 mm audio jack even while charging. However, wireless playback is not recommended during charging as it may affect battery lifespan.

How do I clean the ear cushions?

Gently wipe the ear cushions with a soft, dry cloth. Do not use water, alcohol, or harsh chemicals. For stubborn stains, lightly dampen the cloth with mild soapy water, then wipe and air dry completely before use.

What should I do if the headphones won't turn on?

First, charge the headphones for at least 30 minutes using the USB cable. If still not turning on, try resetting by pressing and holding the power button for 10 seconds. If the issue persists, contact Quer support.

How do I activate noise cancellation?

Press the ANC button located on the left earcup. A short press toggles noise cancellation on/off. The LED will indicate active status (e.g., green for ANC on).

Are replacement ear cushions available?

Yes, replacement ear cushions can be purchased from authorized dealers or the Quer website. The cushions are detachable and can be replaced by gently pulling off the old ones and snapping the new ones into place.

Can I connect the headphones to multiple devices?

The SLU0049 supports multipoint connection to up to two devices simultaneously. For example, you can be connected to a phone and a laptop at the same time, and seamlessly switch audio sources.

What is the range of Bluetooth connectivity?

The Bluetooth range is up to 10 meters (33 feet) in open space. Walls and obstacles may reduce the effective range.

How do I reset the headphones to factory settings?

With the headphones on, press and hold the Volume Up and Power buttons simultaneously for about 5 seconds until the LED flashes purple. This clears all paired devices and resets to factory defaults.

USER MANUAL SLU0049 Quer

FM Stereo Headphones

SLU0049

Abstract composition of blue circles with varying sizes and shades, no text or symbols present

Bedienungsanleitung

DE

User's manual EN

To protect you ear, please control your using time of the headphone at high volume within a limited range and set the volume to a safe level. The higher the volume is, the shorter the safe listening time will be.

To avoid damage or failure:

• It is strictly prohibited to exposing the headphone in the places with temperature, e.g. Places near heating device or car with direct sunlight.
• It is strictly prohibited to dip the headphone into water.
• It is strictly prohibited to use the cleanser containing alcohol, ammonia, benzene or abrasive. If needed, please clean it with a piece of soft cloth and diluted soap water.

Operating and storage temperature:

It is strictly prohibited to operate and store the headphone in the places with temperature lower than-15°C(5°F) or higher than 55°C(131°F). Low temperature will shorten the lifespan of battery.

About stereo headphone

Adjustable headband

Music mode
Press upwards: pre song Press downwards: next song
▶/II : Play/ Pause Press and hold downwards: Vol-
Press and hold upwards: Vol+
FM radio mode
Press and hold: MODE
Press upwards: Pre station
Press downwards: Next station
Press mode: Automatic tuning and storing

Start operation

Power switch

1. Turn on: press 3 seconds until LED flashing.
2. Turn off: press 3 seconds until LED extinguish.

Radio mode

In radio mode, after pressing and holding MODE, L blue dictator of the player flashes, meaning that radio function is on. When the L blue indicator goes off, press short MODE automatic searching station and storing.

Purpose Operating method Response of LED		indicator
Listen to radio program	Press and hold ▶/II in music mode	L red indicator lights constantly.
Previous/Next station	Push upwards ◀◀◀ or push downwards ▶▶▶
Station manual searching	Press short ▶/II till searching over
Volume adjustment Press up	ward and hold Vol-ume + or press downward and hold Volume -

* The player is a stereo receiver. However, the weak signal will make it automatically to single channel. Ln case of strong signal, it automatically switch to stereo.

Music mode

Purpose Operating method Response of LED		indicator
Play / Pause	Press ▶/II	Play: L indicator lights in blue.Pause: Stop flashing.
Previous / Next Song	Push upwards ◀◀◀ or push downwards ▶▶I
Volume adjustment Push Volume + upward or Volume - downward

Use connecting cable

Before connecting to audio jack, please power the headphone off.

What music will be if with no soul? Your stereo earphone is with uncommon sound effect. Based on quality Nd speaker unit, it can achieve excellent dynamic feeling, stereo, bass and tremble. It is really great pity to use it only on Mp3 or enjoy music.

Plug one end of the accessory cable into audio input interface of the earphone, and connect the other and with the 3.5mm earphone jack of the music player, with excellent performance.

Charging

1. Before charging the headphone, please turn off the headphone.
2. It is strictly prohibited to charge the headphone during using.
3. The charging time need 2 hours, the LED turns red, L indicator will automatic extinguish after charging full.

EN

Technical specifications

Standard charge time: Approx. 2 hours

Radio frequency range: 87.6-108MHz

Frequency response: 20Hz-20KHz

Speaker dimensions: 40mm

Sensibility: 110 +/- 3dB

Magnetic type: Nd

Specifications are subject to change without notice.

English

Correct Disposal of This Product (Waste Electrical & Electronic Equipment)

(Applicable in the European Union and other European countries with separate collection systems)

This marking shown on the product or its literature, indicates that It should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal

Made in China for LECHPOL Zbigniew Leszek, Miętne, 1 Garwolińska Street 08-400 Garwolin.

EN