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Bus Station Intercom Doorbell Intercom System Microphone with Wire
US$35.00
1-49 Sets
US$33.00
50+ Sets
Sample price:US$50.00/set.Request sample
Product profile
Customization
AvailableUsage
CommercialCall Type
MixedModel NO.
E390-MHardware Technology
All-in-OneCertification
CE, ISO, RoHSCondition
NewName
Window Intercom for BankQuality
100% SameInstall
EasyUsed for
Restaurant, Teahouse, Bar, Cofe Shop, Hospitalwith Recorder Jack
YesVolume Adjustment
Yes (Can Be Adjusted Separately)Warranty
One YearFunction
Anti-Interference and Noise-FreeWorking Current
<300mADimension
150*98*35mmTransport Package
Standard BoxSpecification
CETrademark
KOQIOrigin
Quanzhou, FujianProduction Capacity
2000 Set/WeekKey features
Anti-Interference Audio: Ensures clear, noise-free two-way communication with high-quality speaker and microphone.
Adjustable Volume Control: Features separate volume knobs for internal and external audio adjustment.
Visual Status Indicator: Includes a reminder light to indicate active voice transmission and working condition.
High Power Output: Equipped with 5W speaker power for wide application in banks, clinics, and stores.
Durable Metal Construction: Built with metal material to withstand commercial environments and ensure longevity.
Comprehensive Certifications: Meets CE, ISO, and RoHS standards for safety and quality assurance.
One Year Warranty: Backed by a one-year warranty covering mechanical defects and performance.
OEM and ODM Services: Offers personalized customized services for diverse application scenarios.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2000-02-01Nearest Port: shenzhenAverage Response Time: ≤15hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW
AI-Powered supplier vetting
SummaryQuanzhou Koqi Electronic Co., Ltd. is identified as a Chinese limited company operating as both a trading company and manufacturer/factory, focused on wireless calling and related communication products. It reports ISO 9000 certification, three production lines, stated annual wireless-calling output of 100,000 boxes, export sales of 71%–90%, and export activity since 2000. The supplier states that it supports design, development, technology, production, service, and OEM orders. However, the available evidence shows fewer than five R&D engineers and fewer than five quality-control staff, while customer-case information is limited to named application scenarios rather than verified customer references. Financial credibility cannot be fully assessed from the provided information.
Supplier typeThe supplier is described as a limited company in Quanzhou, China, with both trading-company and manufacturer/factory classifications. Its own description identifies it as a professional manufacturer engaged in research, development, and production, supported by a stated factory location.
CertificationsThe supplier reports holding ISO 9000 certification. This is explicit evidence of a management-system certification, although no additional certification scope or certificate details are provided.
After-Sales capabilityThe supplier explicitly claims to provide caring or thoughtful service and presents service as one of its core capabilities. The slices do not provide operational details such as warranty terms, service staffing, response times, or repair arrangements.
Production capacityThe supplier reports three production lines and annual wireless-calling-system output of 100,000 boxes, with stated order fulfillment within 15 working days in both peak and off-peak periods. Its export history since 2000 and broad export-market coverage further support operating experience, although capacity for products beyond wireless calling is not specified.
Customization capabilityThe supplier explicitly accepts OEM orders and describes capabilities spanning design, development, technology, and production. Its product coverage includes wireless calling systems, window intercoms, queue-management products, and related communication equipment, supporting customization capability for its product scope.
Product Q&A
Q:What is the working voltage?
A:
The system operates on DC 12V with a working current of less than 300mA.
Q:Can the volume be adjusted?
A:
Yes, it features a volume knob allowing separate adjustment of internal and external volume.
Q:What are the dimensions of the base?
A:
Both the main base and sub-base measure 150*98*35mm.
Q:Is this system suitable for hospitals?
A:
Yes, it is widely used in banks, clinics, government offices, stores, pharmacies, and hospitals.
Q:Does it support customization?
A:
Yes, we provide OEM and ODM services to meet specific application needs.
Send Inquiry
*To:
Quanzhou Koqi Electronic Co., Ltd.
Quanzhou Koqi Electronic Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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