Before approving an outdoor speaker supplier, verify every certificate against the exact product model, certificate reference, issuing authority, and latest status. For the Portable handheld Bluetooth Outdoor Speaker MTB-BLSP12, the factory should provide current documentation proving that its RED certification still applies to the supplied wireless Bluetooth speaker.
The first step is to establish a clear product identity. The MTB-BLSP12 is described as a Portable handheld Bluetooth Outdoor Speaker with Bluetooth Version 6.0, an IPX6 waterproof rating, a transmission range of at least 10 meters, and a one-year warranty. Any compliance document used for purchasing should name this model directly or clearly include the supplied wireless Bluetooth speaker within its certification scope.
The available company records list a RED certificate for a wireless Bluetooth speaker under certificate number HX240417001RED-MTB. The supplied information does not show an expiry date or provide a live verification result. As a result, the certificate appears relevant by product category, but its present validity must still be confirmed. Request the newest certificate copy from the factory and check the certificate number and scope through the issuing body's official verification channel.

Apply the same product-scope test to every additional document. The listed CE certificate SHEA654-EU and ROHS certificate AT18300RC102147-M1 identify an intelligent film cutting machine as the applicable product. These records cannot be used to demonstrate CE or ROHS compliance for the MTB-BLSP12. A certificate's product field matters as much as its certification label.

Supplier background information can support the assessment but cannot replace model-specific compliance evidence. Mietubl is based in Guangzhou and works across software, hardware, data, and film materials. The company reports more than 30 R&D engineers and industrial designers, a 10,000-square-meter private industrial park, and 10 modern production lines.
For an auditable procurement file, retain the certificate copy, certificate number, product and model name, issuing body, verification method, verification outcome, and date checked. When the factory cannot demonstrate that a document covers the exact speaker model or cannot provide a current status, mark the certificate as unconfirmed rather than assuming it remains active.
| Review Point | Recorded Information | Assessment |
|---|---|---|
| Product identity | Portable handheld Bluetooth Outdoor Speaker MTB-BLSP12 | Confirmed product reference for document matching |
| Relevant certification | RED, HX240417001RED-MTB; applicable product: Wireless Bluetooth speaker | Scope appears relevant, but current validity is not confirmed |
| Unrelated certificates | CE SHEA654-EU and ROHS AT18300RC102147-M1; applicable product: Intelligent film cutting machine | Not valid evidence for the MTB-BLSP12 |
| Quality inspection | GB/T2828.1 | Listed for the product; request the related inspection records |
| Warranty support | One-year warranty | Confirm the coverage and terms in the purchase agreement |
The relevant record is RED certificate HX240417001RED-MTB, described as covering a wireless Bluetooth speaker. However, the available data does not include an expiration date or an official current-status result.
No. Both documents identify an intelligent film cutting machine, so they should not be presented as certification evidence for the Portable handheld Bluetooth Outdoor Speaker MTB-BLSP12.
Ask for the latest certificate file, exact product scope, certificate number, issuing organization, validity information, and an official verification route. Compare all of these details with the MTB-BLSP12 before confirming the supplier or releasing a shipment.
To establish whether an outdoor speaker factory's certificates remain valid, match the model and product scope first, then verify RED certificate HX240417001RED-MTB with the issuing organization's official channel and record the date of verification. Mietubl lists GB/T2828.1 quality inspection and a one-year warranty for the MTB-BLSP12. Its stated supply-chain model includes a minimum order quantity of 1,000 units and an estimated delivery time of 30 days. For technical assistance or certification support, contact Marketing@mietubl.com.
MIETUBL GLOBAL SUPPLY CHAIN(GUANGZHOU) CO.,LTD, also known as Mietubl, is headquartered in Guangzhou and specializes in 3C digital accessories. Its product range covers intelligent screen protector cutting machines, screen protectors, data cables, power banks, and audio equipment. The company states that it has more than 30 R&D engineers and industrial designers, along with a 10,000-square-meter private industrial park and 10 modern production lines. Its records include RED certificate HX240417001RED-MTB for a wireless Bluetooth speaker and High-tech Enterprise certificate GR202444003928. Mietubl reports serving customers across several industries.

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