Professional Handheld Wireless Karaoke Microphones, Conference Microphones,
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Product Highlights
- Dual Channel Wireless System: Supports 4 microphones with automatic frequency selection and 32 factory presets.
- Long Working Distance: Achieves up to 90 meters clear transmission with no obstacles.
- Advanced Noise Suppression: Utilizes PLL synthesizer and microprocessing for stable, clean audio.
- One-Key Frequency Scan: Quickly scans interference and automatically selects a stable working frequency.
- Dual Connector Output: Equipped with XLR Balance and 6.3mm Unbalance connectors for versatility.
- High Signal-to-Noise Ratio: Delivers superior audio quality with S/N ratio greater than 105dB.
- Battery Status Monitoring: Allows real-time monitoring of microphone battery levels on the host.
- Panel Lock Function: Prevents accidental touch by locking device panel keys.
Product Attributes
- Customization
- Available
- Style
- Handheld Microphone
- Application
- Music, Voice, Recording, Meeting, Measurement, Amplify
- Model NO.
- QL7R
- Signal Transmission
- Wireless
- Directivity
- Omni-direction
- Sound Channel
- Dual Channel
- Transducer Principle
- Electrodynamic Microphone
- Sound Field Force
- Pll
- Connector(s)
- XLR Balance and Φ6.3 Unbalance Connector
- Wireless Technology
- UHF
- Output Impedance
- Not Marked
- Case Size
- Eia Standard 1u
- Channels
- Dual Channel
- Frequency Stability
- ±0.005%,Pll
- Carrier Frequency
- UHF 603-935MHz
- Factory Preset Channel
- 32 Presets
- Working Distance
- 90m (No Obstacles)
- Oscillation Mode
- Pll
- Sensitivity
- When Offset Is 25kHz,Input 6dBuV,S/N
- Frequency Bandwidth
- 30MHz
- Max Offset
- ±45kHz
- S/N Ratio
- Larger Than 105dB
- Thd
- Smaller Than 0.7%@1kHz
- Frequency Response
- 45Hz-18kHz±3dB
- Power Supply
- 100-240V AC50/60Hz, 10W
- Output Connector
- XLR Balance and Φ6.3 Unbalance C
- Transport Package
- Carton Box
- Specification
- 550x50x250mm
- Trademark
- RF
- Origin
- China
- HS Code
- 851840009
- Production Capacity
- 2000PCS/Month
- Package Size
- 550.00cm * 50.00cm * 250.00cm
- Package Gross Weight
- 5.500kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description
QL7R Dual Channel Automatic Selective Receiver
Specifications as below:
Microphone
| Carrier Frequency | UHF 603-935Mhz | RF Power Output | 13mW |
| Oscillation mode | PLL | Battery | AAx2 |
| Harmonic radiation | <-65dBm | Current Consumption | 100mA |
| Frequency Bandwidth | 120MHz |
Battery Life | about 7 Hours |
| Max Offset | ±45KHz | Dimension | 48(Φ)x270(Length) |
| Sound Head | Dynamic, Cardioid | Weight | 370g |
Receiver
| Case Size | EIA Standard 1U | Frequency Bandwidth | 30MHz |
| Channels | Dual Channel | Max offset | ±45KHz |
| Frequency Stability | ±0.005%,PLL | S/N Ratio | >105dB |
| Carrier Frequency | UHF 603-935Mhz | THD | <0.7%@1KHz |
| Factory Preset Channel | 32 presets | Frequency Response | 45Hz-18KHz±3dB |
| Working Distance | 90m (No Obstacles) | Power Supply |
100-240V AC50/60Hz, 10W |
| Oscillation mode | PLL | Output Connector |
XLR balance and Φ6.3 unbalance connector |
| Sensitivity | When offset is 25Khz,input 6dBuV,S/N >60dB | Dimension (HxWxD) | 421x45x200mm |
Features
- Adopt automatic selection mode, with long receiving distance and eliminate receive staccato.
- With one key search function, Can quickly scan and display the frequency interference on the screen, and automatically select a stable and clean working frequency.
- Each host can support 4pcs microphones, each channel supports two microphones of different frequencies with one key switch function.
- PLL synthesizer, microprocessing technology and advanced noise suppression methods are adopted.
- The host operation support English and Chinese.
- Could set the channel name and monitor the microphone battery status.
- The device panel keys can be locked to prevent accidental touch.
- Adopt advanced high frequency transmission technology,the equipment under high working stability, easy and comfortable to use.
Company


FAQ:
Q1: How long is the warranty for the speakers?
A1: 1year warranty.
Q2: How about the delivery time?
A2: 3-7days for stock.
10-20 days for new order depend on order quantity since receipt of 30% T/T deposit payment.
Q3: What kind of payments does RF support?
A3: T/T, Western Union, Cash are accpeted.
Q4: What's the MOQ?
A4: MOQ is 1pcs
Q5: Can you produce according to customers' design?
A5: Yes we can, we are professional manufacturer,OEM & ODM are welcome .
Q6:Can you tell me your main customers?
A6: That's our customers privacy, we should protect their information.
At the same time, please rest assured that your information is also safe here.
Our Advantages:
1) Audited supplier by SGS international certificate organization
2) Product quality: Superior speaker and amplifier, top technology and quality.
3) Certificate: CE,RoHS,SGS,ISO9001,ISO14001,ISO27001,ISO20000-1,ISO18001
4) Monthly Production Capacity: 2000pcs
5) Fast delivery: Get your order when you need it.
6) 5000 square meters workshop, with about 200 workers and 20 professional engineers
7) Professional and Skilled in audio knowledge ---can design complete audio system for you
8) Convenient Transportation: 1 hour to Guangzhou port
9) 24 hours after sales service.
Welcome to contact me by filling in "Message" below and click " Send".
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI181575". Items marked "" are certified.
Company Profile
Ruifeng Tech. Is an intergrated corporation that works on the business of professional sound and lighting system. We developed with a mission to specialise in research, manufacturing and distribution of PRO audio products. We offer design services and technical consultation, provide one-stop service to all of our customers.
Ruifeng technology park covers 24, 000 square meters, includes administration, sales and marketing center, a R&D center and two factories. Customers can listen to the products in demo rooms and visit our professional facilities, including a 360 m2 anechoic chamber in the R&D center, the chamber meets Chinese implementation standards including GB/T 9396, GB/T 9397, GB 7313, and SJ/T 10406, plus international standards such as IEC 60268-5, AES2-1984, r2003, and EASE.
In 2015, Ruifeng Tech. Created the independent professional sound system brand RF, which is independently operated by technology subsidiary Guangzhou Ruifeng Intelligence Technology Co., Ltd. With the concept of "intelligence innovation", Ruifeng Intelligence is dedicated to R&D and sales of intelligent, high-end, professional-grade sound products and delivery of related technical services.
Our main products are Line Array Speaker Systems, Fixed installation speakers, Power Amplifiers, Digital Processors and All Auxiliary equipment, which are applied to the PRO audio industry.
Our professional and experienced engineering team, who have more than 10-years R&D and live show experience, and master various well-known testing software, such as Logic PRO X, EASE Focus, SysTune, SMAART LIVE, EASE FOCUS, CLIO for debugging and developing loudspeaker and speaker systems. All of our products are applied to RoHS standards.
Over the past years of balanced efforts, we have built up long-term business relationships with customers both at home and abroad. Our professional audio products are widely used in Touring performance, Stadium, Theatre, Multi-function hall, Conference Room, Church, Karaok rooms, Discotheques, Night Clubs, and Stage Monitor fields. RF products win excellent comments because of stability, reliability, durability and considerable service to our customers across the globe.
Thank you for choosing RF products.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 10, Shilou Section, Shilian Road, Panyu District, Guangzhou, Guangdong, China
-
Plant Area
- 1500 square meters
-
Number of Employees
- 33
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- T/T, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Guangzhou Port
Our Production Capability & Technical Expertise
-
Main Products
- Line Array Speakers, Full Range Speakers, Monitor Speakers, Subwoofer, Amplifiers, Processor, Center Control System, Paperless Conference System, Intelligent Recording and Broadcasting System
-
Production Machines
- Assembly Line, Dust Test Chamber, High Temperature Test Chamber, High-low Temperature Test Chamber, Impact Tester, Speaker Power Lab.
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 11 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2015-01-09
- Export Year
- 2018-03-29
-
Main Markets
- Domestic
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CCC, Others
FAQ
- How long is the warranty?
- 1 year warranty.
- What is the delivery time?
- 3-7 days for stock. 10-20 days for new order depend on order quantity since receipt of 30% T/T deposit payment.
- What kind of payments does RF support?
- T/T, Western Union, Cash are accpeted.
- What is the MOQ?
- MOQ is 1pcs
- Can you produce according to customers' design?
- Yes we can, we are professional manufacturer,OEM & ODM are welcome .
- What are your main customers?
- That's our customers privacy, we should protect their information. At the same time, please rest assured that your information is also safe here.
Send your message to this supplier
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