YMB Portable Bluetooth Speaker: 8W Powerful Sound, Your All-Scenario Audio Companion

OEM/ODM - Support Small MOQ.Yumanbei YMB-21 Portable Bluetooth Speaker: 8W Powerful Sound.

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Product Description

Product actual photos

OEM / ODM

R&D & Quality

1. Core Function Section (Structured Presentation + Key Features: Large-capacity lithium battery, mobile charging, long battery life, thoughtful design of hand-cord charging cable)

All-in-one playback mode, breaking away from audio limitations

The YMB Bluetooth speaker by Yumame is equipped with the Jerry 5.4 single-channel Bluetooth chip, with a connection range of over 10 meters, stable signal without delay. It can be paired with mobile phones, tablets, and computers with one-click operation. In addition to Bluetooth connection, it supports TF card direct reading, USB interface playback, and FM radio function, meeting audio needs in different scenarios - use TF card to play pre-recorded playlists when there is no network outdoors, insert a USB drive to play meeting recordings during office hours, and listen to FM radio at home to obtain information. It also supports the TWS pairing function, allowing two speakers to work together to achieve surround sound and create an immersive auditory experience.

• Visual Matching: Function icon matrix (Bluetooth + TF card + USB + FM + TWS) + Scene diagram (left and right speakers placed in pairs)

* Large-capacity lithium battery, mobile charging function, long battery life, ingenious design of the hand-cord charging line

Powerful configuration, performance fully realized, experience maximized

The speaker is equipped with a Φ52mm 3Ω 8W high-fidelity speaker, with powerful sound effect that penetrates deeply, thick bass, clear mid and high frequencies. Whether it's pop music, film soundtracks or outdoor presentations, it can bring a auditory experience. It is equipped with 3 2000mAh large-capacity lithium batteries， with a total capacity of up to 6000mAh， supporting 10 hours of continuous playback， meeting the needs of all-day outdoor use； at the same time， it supports DC5V-1.5A cyclic charging， can be fully charged in 5 hours， and can also be used as a mobile power supply to charge mobile phones in an emergency， with a 3.5-hour quick recharge. The body is made of ABS + silicone + mesh materials, resistant to drops and abrasion, and equipped with IPX4 waterproof grade， not afraid of rain， splashes， safe for outdoor camping， pool parties， and bathroom use.

• Visual combination： technical parameter illustration (speaker structure + battery capacity annotation) + material close-up pictures (silicone anti-slip base + mesh dust-proof mask)

*Portable* High-density woven fabric net

2. Detailed design + RGB atmosphere, appearance level and practicality coexist

The product size is only 160x62x96MM, with a net weight of 530g. It is lightweight and easy to carry, and can be easily placed in a backpack or handbag, allowing you to listen on the go. The body is equipped with RGB atmosphere lights, and the light color changes with the music rhythm. When used at night, it creates a romantic atmosphere. Whether it's a family gathering, a friend's party, or an outdoor camping trip, it can enhance the atmosphere. The user-friendly operation button design is clear and understandable, and even the elderly and children can easily master it. The connection distance is ≥ 10 meters. It gets rid of the restriction of wires, and when at home, you can freely move in the living room. When outdoors, you don't need to get close to the device to play stably.

3. Technical Specification Table

Bluetooth Version: Jerry 5.4, Single Channel

Output Power: 8W

Core Functions: TF/USB/FM/TWS/BT/RGB

Waterproof Level: IPX4

Speaker Specifications: Φ52mm, 3Ω, 8W

Battery Capacity: 2000mAh x3 (Total 6000mAh)

Charging Voltage: DC5V-1.5A (Rechargeable)

Playtime: 10h

Connection Distance: ≥10M

Product Materials: ABS + Silicone + Mesh

Product Size: 160x62x96MM

Net Weight: 530g

Gross Weight: 578g

Color Box Packaging Size: 172x65x100MM

Packing Quantity: 48PCS

Size of Outer Box: 412x359x420MM

Gross Weight of Each Box: 28.7KG

4. Application Scenarios Section

Portable and convenient, available wherever you go

"Outdoor Camping": IPX4 waterproof + long battery life, paired with RGB ambient lights, creating a full atmosphere for a music party under the starry sky;

"Family Gatherings": TWS stereo surround sound, adding a sense of ceremony to birthday parties and holiday meals, with ambient lights enhancing the joyful atmosphere;

"Office and Leisure": Compact design, not taking up much space, playing light music to relieve work stress, FM function for keeping abreast of industry news at any time;

"Sports and Fitness": Sweat-proof and waterproof design, suitable for running and yoga, strong sound effect to boost the rhythm of exercise;

"Relaxation in the Bathroom": IPX4 waterproof, not afraid of water vapor, enjoying immersive music experience while taking a bath, relieving fatigue from a day's work.

5. Advantage and Value Section

Choosing YMB is more than just a speaker

"Universal Compatibility": Multiple playback modes + TWS pairing, meeting audio needs in various scenarios, one unit can replace multiple units;

"Powerful Battery Life": 6000mAh large-capacity battery, 10-hour playback time + mobile charging function, no anxiety when using outdoors;

"Durable and Reliable": ABS + silicone + fabric mesh material + IPX4 waterproof, shock-resistant and splash-proof, longer service life;

"Appearance Level on Point": RGB ambient light + simple and portable design, balancing practicality and aesthetics, suitable for personal use and as a gift;

"Factory Origin Guarantee": 10 years of Bluetooth speaker production experience, supporting OEM/ODM customization, stable quality guaranteed.

6. Usage Method + Safety Tips (Simple and Easy to Understand + Safety Guidance)

Easy to operate, safe to use

• Usage Method:

1. Power On: Press and hold the power button for 3 seconds, and the indicator light will turn on to power on;

2. Connection: After powering on, it will automatically enter the Bluetooth pairing mode. Your phone can search for "YMB-21 Speaker" to connect;

3. Mode Switching: Press the mode button briefly to cycle through Bluetooth/TF/USB/FM modes, and the corresponding indicator light will turn on;

4. Charging: Use a DC5V-1.5A charger and insert it into the charging interface. The charging indicator light will turn on, and it will go off after being fully charged.

• Important Notes:

1. Avoid using for long periods in high temperatures (＞45℃) or low temperatures (＜-10℃) to prevent damage to the battery life;

2. The waterproof rating is IPX4, which only prevents splashes, and it is not suitable for immersion in water;

3. When cleaning, use a dry cloth to wipe, and avoid allowing water to enter the interface;

4. Do not disassemble the speaker by yourself. If repair is needed, please contact the official after-sales service.

• Visual Presentation: Step diagram (simplified operation process) + Icons for important notes (prohibition of use in high temperatures, waterproof reminder, etc.)

7. After-sales Service + Accessories List

Unlimited after-sales support, purchase with peace of mind

• After-sales Service:

1. Warranty Policy: Free repair or replacement of accessories for non-human damage;

2. After-sales Support: 7×24-hour online customer service consultation (Chinese/English/dual language), promptly resolving usage issues;

3. Custom Service: Supports OEM/ODM customization, can adjust functions, appearance, packaging according to requirements to meet bulk purchase needs.

• List of Accessories:

1. Portable Bluetooth speaker × 1;

2. Product manual (Chinese/English/dual language) × 1;

3. Product certificate of conformity × 1;

4. Installation dust cover × 1.

IMG_0409 -1

OEM/ODM

Requirement analysis and solution provision

OEM project: Our engineers will review your design draft and technical documents, confirm feasibility, and provide production optimization suggestions.

ODM project: Our sales and design team will have in-depth communication with you and provide a comprehensive solution including material selection, rendering, process description, and preliminary quotation based on this.
Quotation and Contract Signing

After the scheme is confirmed, we will provide a formal quotation including quantity, unit price, mold fee, payment method, and delivery time.

After both parties confirm the accuracy, sign the contract and make a prepayment (usually 30% -50% of the total amount).
Sample production and confirmation

We will produce physical samples according to the confirmed plan and send them to you by express delivery.

Please confirm the material, color, size, and feel of the sample. At this stage, up to 2 free modifications can be made to ensure that the sample fully meets your requirements.
Mass production

After receiving your sample confirmation email, we will start mass production. During the production process, we implement a strict QC (Quality Control) system.
Pre shipment inspection and final payment

After production is completed, we will provide photos or videos of the finished product for you to confirm before final shipment.

After you confirm the accuracy, pay the remaining balance.
Packaging and Logistics

We provide professional packaging according to your requirements (such as regular boxes, inner boxes, or pressure resistant packaging) and arrange shipment through your designated logistics method, providing all logistics documents.

R&D & Quality

Acoustic tuning technology

Algorithm and software tuning: We collaborate with professional third-party companies. In addition, with the help of intelligent EQ and digital debugging tools, the sound can be finely and personalized adjusted, greatly improving debugging efficiency.

Hardware and structural innovation: Acoustic architecture is the physical foundation of sound quality. Can increase the volume of the vocal cavity by 29% in the same volume, enhancing low-frequency performance. We use wireless multi-channel technology to achieve a cinema level surround experience in home environments.

R&D facilities and cooperation: R&D relies on a professional environment. At the same time, industry university research cooperation with universities and international acoustic research institutions is the key to maintaining technological leadership.
Quality control system

Full process inspection: A rigorous system typically includes IQC, PQC, and OQC.

Standardization and quantification: All inspections are carried out according to clear document standards, covering appearance, material, buttons, core electroacoustic performance, etc. Strict quality control can keep the factory defect rate at an extremely low level, far exceeding the industry average.
Reliability testing

Environmental reliability testing: including high and low temperature, humid heat, salt spray corrosion testing, etc., to test the product's tolerance to different climates and corrosive environments.

Mechanical and lifespan testing: including drop testing, vibration testing, interface plugging durability testing, etc., simulating transportation, accidental drops, and daily wear and tear.
Special protection testing: mainly refers to IP dust and water resistance level testing. This is a key indicator for outdoor portable speakers, which means that the product can be completely dust-proof and can be soaked in water for a period of time.
Compliance and Certification

Safety certification: The most common is China's CCC certification. It is worth noting that if the speaker is equipped with a power adapter or battery, these components themselves also need to have corresponding certifications.

Electromagnetic compatibility and radio certification: The electromagnetic interference generated by the product must not affect other devices, and it must also be able to resist interference. Entering the US market requires FCC certification, while the EU requires CE certification. In addition, the use of wireless technologies such as Bluetooth requires BQB certification from the Bluetooth Technology Alliance.

Environmental and other certifications: may include RoHS, energy efficiency labeling, etc. Enterprises usually entrust authoritative third-party testing laboratories with CNAS, CMA and other qualifications to complete relevant tests and issue reports

Enterprise Picture Collection

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Product Description

Product actual photos

OEM / ODM

R&D & Quality

OEM/ODM - Support Small MOQ.Yumanbei YMB-21 Portable Bluetooth Speaker: 8W Powerful Sound.

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