BH420W - Speaker ACME - Free user manual and instructions

Product Type	Bluetooth In-Ear Headphones
Brand	Acme
Model	BH420W
Bluetooth Version	5.0 + EDR
Frequency Range	2.4 - 2.48 GHz
Frequency Response	20 – 20,000 Hz
Speaker Size	8.2 mm
Operating Range	Up to 10 m
Playback Battery Life	Up to 5 hours
Standby Battery Life	Approximately 400 hours
Earbud Charging Time	Up to 1.5 hours
Case Charging Time	Up to 2 hours
Additional Charges (Case)	3 full charges
Total Weight	40 g
Main Functions	Play/pause, call management, volume control, next/previous track, voice assistant
Control	Touch (multifunction button on each earbud)
Voice Assistant	Yes (3 presses on earbud)
Maintenance and Cleaning	Avoid abrasive solvents, extreme temperatures, sharp objects and drops
Safety	Risk of hearing damage at high volume; do not dispose of in fire
Compliance	RED 2014/53/EU, RoHS 2015/863/EU

Frequently Asked Questions - BH420W ACME

How do I pair the BH420W earbuds with my phone?

Remove both earbuds from the charging case: they power on and automatically enter pairing mode. On your phone, enable Bluetooth and select BH420W from the list. A short beep confirms the connection.

How long does it take to fully charge the earbuds?

The earbuds charge in approximately 1.5 hours in the case. The case itself requires 2 hours for a full charge via USB-C.

What should I do if only one earbud works?

Turn off both earbuds by pressing and holding the multifunction button for 3 seconds, then turn them on simultaneously. If the problem persists, reset the earbuds by placing them in the case and holding the button for 5 seconds until you hear a short beep.

How do I increase the volume with the earbuds?

Press the right earbud to increase volume, and the left earbud to decrease it.

The earbuds disconnect frequently, what should I do?

Ensure the distance between the earbuds and your device does not exceed 10 meters. Unpair in Bluetooth settings and re-pair. If the problem persists, reset the earbuds.

Can I use the earbuds while charging?

No, the earbuds cannot be used while they are in the charging case. You must remove them to use them.

How do I activate the voice assistant?

Press the left or right earbud three times. An audio alert sounds, then you can ask a question to your smartphone's assistant.

What does the red/blue blinking on the left earbud mean?

A rapid red/blue blinking indicates the earbuds are in pairing mode. Once connected, the left indicator stays solid blue (if connected).

How do I clean the earbuds?

Use a soft, dry cloth. Never use abrasive solvents, and avoid exposure to extreme temperatures or sharp objects.

What should I do if the charging case does not turn on?

Check the USB-C cable connection and try another charger. If the problem persists, the case battery may be drained: leave it plugged in for at least 2 hours.

USER MANUAL BH420W ACME

White wireless earbuds with open case against green background (no text or symbols visible)

BH420W

TRUE WIRELESS

Earbuds

4 GB User manual

8 LT Vartotojo gidas

12 LV Lietošanas instrukcija

16 EE Kasutusjuhend

Technical specifications

Type: in-ear, Bluetooth

Frequency response: 20-20,000 Hz

Driver size: 8,2 mm

Bluetooth version: v5.0 + EDR

Frequency range: 2.4–2.48 GHz

Maximal output radio frequency power: 8 dBm / 6,3 mW

Working distance: up to 10 m

Power supply: USB Type-C, 5 V DC

Microphone: built-in

Battery (charging case): Li-ion, 3.7 V, 450 mAh (1.67 Wh)

Earphones charging time: up to 1,5 hours

Charging time of the charging case: up to 2 hours

Standby time: about 400 hours

Playback time: up to 5 hours

Recharging with the charging case: 3 times

Total weight: 40 g

WARNING: Listening at a high volume for a long time may damage your hearing.

Product overview

1) Power (multifunction button)
2) Indicator light and MIC
3) Speaker
4) Charging contacts
5) Charging indicator
6) Battery status button
7) USB Type-C charging port

Before you start using the earphones, you must charge the battery and pair the earphones with a compatible device.

Charging the earphones and charging case

Line drawing of a power cord, plug, and socket connected to a heater (no text or symbols)

The BH420W charging case has an internal, rechargeable battery that must be fully charged before being used for the first time. It takes about 2 hours to fully charge the battery for the first time. If you do not use the device for a long period of time, please charge it once every 2 months to avoid damage to the battery.

- Put the earphones in the charging case and close the cover to charge. During charging, the indicators will show a steady red colour. When the battery is fully charged, the red light will turn off.

- Use the USB charging cable to charge the charging case. The indicator lights of the charging case are blinking blue when being charged. They will turn off automatically after being fully charged.

Fully charged earphone batteries have the power for up to 5 hours of playback time (15 hours more from the charging case). When the batteries running out of power, a sound prompt will be heard. This indicates that the ones need to be charged as soon as possible.

Pairing

Automatic (first time setup) method:

• Power on or remove the two earphones from the charging case and wait for 3 seconds. The two earphones will power on and enter to the pairing mode automatically. A fast-blinking red/blue LED from left headphone will indicate that the earphones are ready to pair with your device.
• Turn on the Bluetooth function on your device, select BH420W from the list, and pair the earphone.
  • A voice prompt will be heard from the right earphone saying that the earphones are connected.

Manual method:

- When both earphones are in an off state, press and hold the power (multifunction) button of both earphones till blue LED indicator is seen. Release right earphone power button, but keep holding left earphone power button until fast-blinking red/blue LED will be seen.

- Turn on the Bluetooth function on your device, select BH420W from the list, and pair the devices.

• A sound prompt will be heard from the right earphone confirming that the earphones are connected.

If no Bluetooth connection is made within 5 minutes, the earphones will turn off automatically.

Basic Use

To switch on, when both earphones are in an off state, press and hold the power (multifunction) button for 3 seconds for both earphones at the same time until the blue indicator light comes on.

To switch off, when both earphones are in an on state, press and hold the power (multifunction) button of one corresponding (left or right) for 3 seconds to power off both earphones until the red indicator light flashes or just put them back into the charging case.

Automatic reconnection

When both earphones are in an off state, remove them from the charging case at the same time, and they will reconnect automatically.

Answer a call

When there is an incoming call, press the power (multifunction) button on the left or right earphone.

Reject a call

Press and hold the power (multifunction) button of the left or right earphone for 2 seconds.

End a call

To end the call, press power (multifunction) button on the left or right earphone.

Play/Pause

Double tap the power (multifunction) button to pause/play the song.

Increase/Decrease volume

Press right earbud power button to increase the volume. Press the left earbud power button to decrease the volume.

Next/Previous song

Press and hold the right earbud power button to change song to next one. Press and hold the left earbud power button to change song to previous one.

Voice assistant

Triple tap left or right earbud and the smartphone's assistant will appear. After prompt sound you can ask any question and the answer will play to the earphones.

Wearing the earphones

To properly wear the earphones:

STEP 1. Place the earphones in the ears as shown.

STEP 2. Slightly rotate the earphone until it gets tight.

graph LR
    A["Small ear icon"] --> B["ear ring with head"]
    B --> C["ear ring with arrow indicating rotation"]

LED indications

No.	Status Headset Performance
1	Pairing The indicator light of the	the left earphone flashes red and blue alternately; when successfully connected to the device, the indicator light keeps lighting blue.
2	Call state In case of the incoming	bing call, the indicator lights are blinking blue.
3	Headset charging state The in	indicator light of the headset is red when being charged and will turn off automatically after being fully charged.
4	Charging case charging state	The indicators blinking blue when being charged and will turn off automatically after being fully charged.
5	Power on state If earphones are connected to device, indicator light of left earphone stays blue.
6	Power off state The indicator	ight stays red for 2 seconds and switches off.

Troubleshooting

Faults Reasons and Solutions
The earphones cannot be turned on.The earphones turn off automatically.The earphones cannot turn on by picking them up from the charging case.	Charging case low battery protection. Recharge your earphones and charging case.
Music is not playing. Make sure that both devices are paired and connected and that “Media playback” is enabled in your Bluetooth settings. Try to pair it again.
Pairing was successful but the device cannot find the right earphone or reconnect/connect.	Too many pairing records. Delete pairing records (unpair) and try again. It is possible that you are not able to connect because the earphones are paired with another nearby device. You will have to disconnect the other device, or even turn off its Bluetooth function. Now you can try again to pair or reconnect. To reset earphones, put them in to the charging box and hold power button of both earphones for 5 seconds till sound prompt will be heard.
The charging case indicator has no light while charging.	DC power supply does not output power. Check your USB connections and try to charge with a different charger.
The earphone indicator has no light while charging.	Check the pogo pin charging points. Place the earphone correctly in the charging case.
Only one earphone is working Turn off both earphones. Turn on both earphones again at same time.

Care and maintenance

• Don't use abrasive cleaning solvents to clean the headset.
• Do not expose the headset to extremely high or low temperature as this will shorten the life of electronic devices, destroy the battery or distort certain plastic parts.
• Don't dispose of the headset in a fire as it will result in an explosion.
• Don't expose the headset to contact with sharp objects as this will cause scratches and damage.
• Don't let the headset fall down onto the floor. The internal circuit might get damaged.

Waste Electrical and Electronic Equipment (WEEE) Symbol

The use of the WEEE symbol indicates that this product may not be treated as household waste. By ensuring this product is disposed of correctly, you will help protect the environment. For more detailed information about the recycling of this product, please contact your local authority, your household waste disposal service provider or the shop where you purchased the product.

Line drawing of a power cord, plug, and socket connected by a cable (no text or symbols)

graph LR
    A["Small ear icon"] --> B["ear with ring"]
    B --> C["ear with arrow indicating rotation"]

LED indikatoriai

LV "BLUETOOTH" AUSTINAS

Line drawing of a power adapter connected to a battery pack and plug (no text or symbols)

graph LR
    A["Small ear"] --> B["ear with head"]
    B --> C["ear with ring and arrow indicating rotation"]

LED indikatori

Line drawing of a power cord, plug-in socket, and heater connected by a cable (no text or symbols)

graph LR
    A["Early ear"] --> B["Mid ear"]
    B --> C["Mid ear with rotation arrow"]

LED-tuled

Line drawing of three connected devices: a power socket, a plug-in socket, and a battery pack (no text or symbols)

graph LR
    A["Small ear"] --> B["ear"]
    B --> C["ear with rotation arrow"]

Wskaźniki LED

Line drawing of a power cord, plug-in socket, and connected adapter (no text or symbols)

СИД-индикаторы

Line drawing of a power cord, plug, and socket connected by a cable (no text or symbols)

graph LR
    A["Small ear"] --> B["ear with inner ear"]
    B --> C["ear with outer ear"]

LED-Anzeigen

Line drawing of a power plug, socket, and connected device (no text or symbols)

graph LR
    A["Small ear"] --> B["ear with inner ear"]
    B --> C["ear with outer ear"]

LED-Anzeigen

Line drawing of a power plug, socket, and terminal device (no text or symbols)

graph LR
    A["Small ear"] --> B["ear with rotation arrow"]
    B --> C["ear with rotation arrow"]

Tip: in-ear, Bluetooth

Mărime driver: 8,2 mm

Versiune Bluetooth: v5.0 + EDR

Line drawing of a power adapter connected to a battery pack and plug (no text or symbols)

graph LR
    A["Small ear icon"] --> B["ear ring with head"]
    B --> C["ear ring with arrow indicating rotation"]

Indicatoare LED

Line drawing of a power adapter connected to a battery pack and plug (no text or symbols)

graph LR
    A["Small ear"] --> B["ear"]
    B --> C["ear with rotation arrow"]

LED jelzések

Prije početka uporabe slušalica, morate napuniti bateriju i upariti ih s kompatibilnim uređajem.

Line drawing of a wall-mounted power plug connected to a battery pack via a USB cable (no text or symbols)

Vrijeme reprodukcije u potpunosti napunjenih slušalica je do 5 sata (15 sati više ako se pune preko kućišta za punjenje). Kada baterije postanu slabe, oglasit će se zvuk upozorenja. To znači da se slušalice trebaju napuniti što je prije moguće.

Uparivanje

Automatski (za prvo uparivanje) način rada:

graph LR
    A["Small ear icon"] --> B["ear ring with head"]
    B --> C["ear ring with arrow indicating rotation"]

LED indikatori

Line drawing of a power adapter connected to a device via USB cable (no text or symbols)

graph LR
    A["Small ear"] --> B["ear"]
    B --> C["ear with rotation arrow"]

Indicadores LED

Line drawing of a power adapter connected to a battery pack (no text or symbols)

graph LR
    A["Small ear"] --> B["ear"]
    B --> C["ear with rotation arrow"]

Pomen kazalnikov LED

Tipo: in-ear, Bluetooth

Line drawing of a power cord, plug, and socket connected by a cable (no text or symbols)

graph LR
    A["Single ear"] --> B["Oscillion"]
    B --> C["Circular ear with rotation arrow"]

Indicazioni LED

Type: in-ear, Bluetooth

Frequentierespons: 20–20 000 Hz

Driver unit: 8.2 mm

Bluetooth versie: v5.0 + EDR

Line drawing of a power adapter connected to a device via USB cable (no text or symbols)

graph LR
    A["Small ear icon"] --> B["ear with ring"]
    B --> C["ear with arrow indicating rotation"]

LED-lichtjes

Alimentation: USB Type-C, 5 V DC

Microphone: intégré

Batterie (boîtier de charge): Li-ion, 3,7 V, 450 mAh (1,67 Wh)

Line drawing of a power cord, plug-in socket, and battery pack connected by cable (no text or symbols)

graph LR
    A["Small ear"] --> B["ear with rotation arrow"]
    B --> C["ear with rotation arrow"]

Indications LED

ACC Distribution hereby declares that this equipment is in compliance with the essential requirements and other relevant provisions of:

"RED 2014/53/EU" Directive;

"RoHS 2015/863/EU" Directive.

The declaration of conformity can be accessed at:

https://www.acme.eu/declarations-conformity

LT ES atitikties deklaracija

Product Product model
Product purchase date Seller name, address
Failures (date, description, position of the person who accepts the product, first name, last name and signature)

1. Warranty period

Warranty enters into force starting with the day when the buyer acquires the product from the seller. Warranty period is indicated on the package of the product.

2. Warranty conditions

The warranty is valid only by providing an original document of the product acquisition and this warranty sheet, which includes name of the product model, product purchase date, name and address of the seller.

If it is noticed during the warranty period that the product has faults and these faults where not caused by any of the reasons when the warranty is not applied as indicated in the paragraphs below, manufacturer undertakes to replace the product.

The warranty is not applied to regular testing, maintenance and repair or replacement of the parts which are worn out naturally.

The warranty is not applied if damage or failures occurred due to the following reasons:

- Inappropriate installation of the product, inappropriate usage and/or operating product without following the manual, technical requirements and safety standards as provided by the manufacturer, and additionally, inappropriate warehousing, falling from heights as well as hard strikes.

• Corrosion, mud, water and sand.

- Repair works, modifications or cleaning, which were performed by a authorised by the manufacturer.

- Usage of the spare parts, software or consumptive materials which do not apply to the product.

- Accidents or events or any other reasons which do not depend on the manufacturer, which includes lightning, water, fire, magnetic field and inappropriate ventilation.

- If the product does not meet standards and specifications of a particular country, in which it was not bought. Any attempt to adjust the product in order to meet technical and safety requirements such as those in the other countries withdraws all the rights to the warranty service.

If no failures are detected in the product, all the expenses in relation to the service are covered by the buyer.

www.acme.eu