Audited Supplier
Have three modes: Noise Cancelling mode, Normal mode, and Transparency mode.
| The Bluetooth chip | JL7018 | Distortion | ≤5% At 1KHz |
| Bluetooth profile | A2DP/AVCTP/AVDTP, AVRCP/HFP/SPP/SMP/ATT | Impedance | 32Ω±15Ω |
| Noise reduction depth | ≥-30dB | Frequency response | 20Hz-20KHz |
| Noise reduction mode | FF+FB | Working time | About 30H |
| Sensitivity | 98dB±3dB (S.P.L/1mW, 1KHz) | Operation range | 10m/33ft |
Other relevant product:
Founded in 2008, Shenzhen Roman Technology Co., Ltd. is a national high-tech enterprise and one of China's 100 most innovative companies. By centering on "innovative design, R&D, and precision manufacturing", Roman has been continuously optimizing the company's industrial chain, enhancing its R&D strength, strengthening production capabilities, and growing into a leader in China's Bluetooth headset industry.
Smart Factory & Smart Manufacturing
Roman has established an advanced and independent acoustic laboratory and product R&D institute to continuously optimize production processes and expand production capacity. From raw material procurement to final testing and shipping, we have established comprehensive and standardized manufacturing. Roman now has a monthly production capacity of more than one million units.
In-Deep Exploration of Technologies & Continuous R&D.
Roman has owned more than 240 core patents and invention patents in the industry, and has an annual increase of over 30 patents.
First-Class & World-Renowned Quality
Roman has passed a series of international certifications, including ISO 9001, CE, ROHS, and FCC. Roman has independently developed more than 100 Bluetooth headsets, and its products are sold to more than 50 countries and regions in Europe, America, South America, and Southeast Asia. Moreover, Roman has been cooperating with many well-known brands in China as an OEM, ODM, or brand agency to achieve win-win results.
1. Q: Can you do our designs with our LOGO?
A. We will offer OEM/ODM service! Support customized LOGO, radium engraving, embossing and designed package box!Sample can be proofing, Large quantities can be open mold. We have engineers will give you technical or new design solutions generally within 2-3 days. Contact me online to know more!
2. Q: How do you take care when your clients received defective products?
A: We offer the warranty of 12 months for all products.
3. Q: What's your delivery time?
A: Sample 2-3 days; More than 1000pcs 25 working days.
4. Q: Does the China true wireless earbuds supplier have been audited or verified?
A: Yes,we are a TWS factory with BSCI,ISO 9001 and more.
5. Q: What are the major advantages of our factory?
A: We have the R&D team for products of original and private designs.What's more, we have completer manufacturing facilities, including the reliability testing lab, tooling development department,plastic injection department,oil spay & logo printing department, product assembly and packing department.
6. Q: Do you have any product design patent?
A: Yes,most of the products from our china tws earbuds manufacturers are original and private designs,for most of them,we applied the design patents.
7. Q: Do you have testing reports and certificates for your product?
A: Most of the hot selling models, we have all the necessary and basic certificates and reports, such as CE,ROHS,MSDS,UN38.3,KC,CE, IEC62133 and more.
