MCURVE MC21 Ture Wireless Earphone User Manual

MCURVE MC21 Ture Wireless Earphone

Product Information

Specifications:

• Model: [Product Model]
• Compliance: FCC Part 15
• Operating Conditions: Indoor use only
• Power Source: [Specify power source]
• Dimensions: [Specify dimensions]
• Weight: [Specify weight]

Product Usage Instructions

FCC Compliance:
The device complies with Part 15 of the FCC Rules. To maintain compliance, do not make any changes or modifications that are not expressly approved by the responsible party.

Operating Conditions:
Use the product indoors only. Avoid exposure to extreme temperatures or moisture.

Power Source:
Connect the product to the specified power source as indicated in the user manual. Use only the recommended power adapter.

Interference Handling:
Ensure that the device does not cause harmful interference. It must also accept any interference received, even if it leads to,undesired operation.

Frequently Asked Questions (FAQ):

1. Q: Can I use the product outdoors?
   A: No, the product is designed for indoor use only to ensure proper functionality and safety.

2. Q: What should I do if I encounter interference while using the product?
   A: If you experience interference, try relocating the product toa different area away from potential sources of interference. Ensure no other electronic devices are causing interference.

Warranty Card
Customer Information

Thereby approve the device’s performance inspection and the purchasing of a fully functional product, as specified above, with a complete set of User’s Manual instructions for use in English. The product has inspected and checked in my presence, has no visible damage. With all the technical characteristics, functionality and
operating rules familiar.
Name (Buyer):
I agree with the warranty terms below
Signature (of the buyer)
Seller
Signature
S.P.

Warranty Record

Terms of warranty service

Before filling out the Warranty card please read the following terms and conditions:

1. The warranty does not apply to accessories included in the product, if their replacement is not related to the disassembly of the product: batteries, cables, adapters, covers, documentation.
2. The manufacturer is not liable for warranty in the following cases: if the product was used for business, as well as for other purposes that do not correspond to its intended purpose; violation of the rules and conditions of use, installation of the product set out in the user Manual and other documentation; if the product has traces of attempts of unqualified repair; if the defect is caused by a change in the design or scheme of the product, connection of external devices not provided by the Manufacturer; if mechanical damage is detected after the transfer of the product to the consumer; damage caused by moisture, high or low temperatures, corrosion, oxidation, ingress of foreign objects, substances, liquids, insects or animals.

WARRANTY PERIOD – 12 MONTHS FROM THE SALE DATE DURATION OF SERVICE – 12 MONTHS
If it is not possible to reliably establish the date of sale, the warranty period calculated from the product’s manufacturing date and it’s 18 months.

Information on the work of the technical service and warranty issues can find out:

• Online www.marscuire.com
• Email: Info@marscurve.com

User’s manual:
We recommend use headphones with the cable included in product kit.

Product List:

1. Charging case – 1 pc
2. TWS Earphones – 2 pcs
3. USB A – USB C – 1 pc
4. User manual/ Warranty card – 1 pc

Safe use Information:

Read the instructions carefully before use. The appearance and specifications of the device may be resized and different from the image in this manual without prior notice.

• Do not listen to music at maximum volume for long periods of time as this can damage your hearing.
• Consult a physician regarding the use of this device with medical equipment*.
• Or a medical device manufacturer.
• Use only certified wall chargers.
• Do not do the following with the device and battery:
  • Do not disassemble*.
  • Do not repair*.
  • Do not modify.
  • Do not overheat the battery.
  • Do not expose it to direct sunlight.
  • Do not immerse in water.
  • Keep away from sources of fire and open flame.
  • Do not expose the product to very low or very high temperatures (below 0 ° C or above 45 ° C).
• Contact an authorized service technician.
• Do not use this product during a thunderstorm – there is a risk of electric shock or device malfunction.
• The metal contacts (Fig. 2 (point 5)) of the headphones and charging case must be free of dirt and not covered by foreign objects.
• Do not use this device in places with strong exposure to an electromagnetic field – this can lead to incorrect operation or damage the device.

Product Description

MC21 blends premium sound quality with a sleek zinc metal casing, minimalist design, touch controls, and IPX4 water resistance for a versatile audio experience that’s both stylish and functional.

Fig. 1

1. Metal charging case
2. LED Indicator (case battery charge status)
3. Charging Port (USB Type-C)

Fig. 2

1. Microphone
2. LED indicator (charge status and headphone pairing)
3. Multi-function Touch Control
4. Metal contacts for charging

Quick Start Guide

1. Before using the device, remove the earbuds from the case and remove the protective film from the charging contacts of the earbuds.
2. Fully charge the case along with the headphones – use the supplied cable (power adapter not included).

LED indication of the charging status of the case

Use steps

1. Take the earbuds out of the charging case, they will automatically turn on (fig.3). The voice command “power on” will sound in the headphones- the headphones
   are turned on.

2. Turn on Bluetooth on the paired device (smartphone, table, laptop ,etc.)(Fig. 4). Select MC21 from the list of devices available for pairing. The voice command
   “connected” will sound in the headphones – the headphones are paired with your device.

3. The headphones are equipped with touch controls. The sensor area is shown in Figure 5. Control is carried out by short or long pressing or a combination of pressing. (see the table of operations in this user manual.)

4. When you are finished listening to music, put the earbuds back into the charging case(Fig.6). The headphones will automatically turn off and start charging from the case battery.

Earbuds LED indication

Charging| Steady white light while charging, the light off while charge completed
---|---
Pairing mode| One headset flash white light quickly (2 times per second), the other headset flash white light slowly( one time per 5 seconds)
Connected| Without light
Incoming call| White light flash 2 times per 500ms
Two earphones pairing| White light flash quickly
Charging to the case| The 4 light indicator flash (25%,50%75%,100%)
Fully charged to case| Full charged:White LED is off
Notice| Use an AC adapter with 5V output voltage (compatible) with a Type-C USB cable.

Touch operation table

Power on(Hall switch)

1. Open the charging case(with power)
2. Without case, long press around 2s to power on

Power off(Hall switch)

1. Take earbuds into Charging Case, close the charging case
2. Disconnect earphone with phone without case, long press 5s L/R to power off

Your smartphone or other device paired with the headphones must be connected to the Internet and support the siri voice assistant function.
Note: Volume control not available when using one side only. Others functions remain the same.
Reset to factory settings and synchronize the left and right earbuds: With short quick presses, touch the left and right earbuds at the same time 5 times.
Before that, remove « MC21 » from the list of paired Bluetooth devices from your phone.

Technical Specifications

• Model Name: MC21 Clip buds
• Bluetooth Version/Chipset: V 5.3/AD6973D4
• Speaker: 13mm x 2
• Sensitivity: 112+3dB
• Operation Range: 10m
• Frequency Range: 20hz-20Khz
• Charging Time: 15H
• Playtime: 4 hrs(headset) +12 hrs(case)
• Charging interface: USB-C
• Headset/Case Battery: 30mAh Coin Battery/300mAh
• Materials: Zinc Alloy
• Dimension: 85.434.519.2mm
• Color: Black / Gray/ Silver/ Pink

Package Content:

• MC21 Clip buds
• Charging Cable
• User Manual

Customer feedback:

FCC Requirement

Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

References

• Marscurve| Innovative design TWS manufacturer

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