SP-305 · PRIVATE LABEL · OEM / ODM

SP-305 HiFi IEM OEM Manufacturer.

Type-C digital HiFi IEM with a triangular metal faceplate, dark braided ear-hook cable and 10 mm dynamic driver. Request the current specification, sample-validation plan and configuration-based quotation.

HIFI / MONITORING IEMSAMPLE-BASED APPROVALLOGO · CABLE · PACKAGING
Request SP-305 quotationEmail salesSend model RFQ
SP-305 private-label HiFi IEM OEM model
MOQConfirm by configurationModel, cable, color and package affect the production minimum.
SAMPLEApprove before orderLock sound, fit, cable, appearance and accessories.
QUOTATIONConfiguration firstPrice follows the confirmed product brief.
MODEL DIRECTION

A procurement page for the SP-305 platform.

PRODUCT DIRECTION

Type-C digital HiFi IEM with a triangular metal faceplate, dark braided ear-hook cable and 10 mm dynamic driver.

Use the sample stage to confirm whether this structure fits the intended listening use and sales channel.

ACOUSTIC TARGET

Approved-sample tuning

Frequency response, sensitivity direction and left-right consistency belong in the approved specification.

CABLE & CONNECTOR

Project-specific configuration

Confirm connector, cable material, microphone or controls, length and included accessories.

PRIVATE LABEL

Logo, finish and packaging

Confirm logo process, housing finish, ear tips, case, artwork, manuals and carton marks.

BUYER FIT

Audio brands and distributors

For B2B teams that will validate sound, fit, appearance and packaging before production.

QUALITY RECORD

Frequency-response inspection

Define the approved curve, tolerance, channel matching and sampling or batch-check method.

PROCUREMENT QUICK ANSWER

What is the SP-305 HiFi IEM OEM platform?

SP-305 is a current JRT Audio private-label HiFi and monitoring IEM platform manufactured by Dongguan Jiaruitong Intelligent Electronics Co., Ltd. Type-C digital HiFi IEM with a triangular metal faceplate, dark braided ear-hook cable and 10 mm dynamic driver. It is supplied for B2B OEM/ODM projects, not retail checkout.

Brand
JRT Audio
Manufacturer
Dongguan Jiaruitong Intelligent Electronics Co., Ltd.
Product group
HiFi and monitoring IEMs
Buying method
Configuration-based OEM/ODM quotation
Sample reference
About 15 days after the brief is confirmed
Contact
sales@jrtaudio.com · WhatsApp +86 187 1877 5618
CURRENT REFERENCE SPECIFICATION

SP-305 procurement specification snapshot.

DRIVER10 mm dynamic driver
FREQUENCY RESPONSE20 Hz–20 kHz
SENSITIVITY108 dB ± 3 dB
IMPEDANCE23 Ω
EARPHONE CONNECTOR0.78 mm
DIGITAL SOURCEType-C · KT digital version
CABLE LENGTH1.2 m
WEARING STYLEIn-ear monitor

B2B configuration note: final cable, microphone or controls, DSP direction, logo, color, accessories, packaging and acoustic tolerance are confirmed against the approved sample and project specification. No retail price is shown because quotation follows the selected configuration.

REAL FACTORY & ACOUSTIC TEST VIDEO

See actual IEM production and frequency-response inspection.

Production and acoustic evidence, clearly labeled.

The footage shows JRT Audio's Dongguan production floor and real IEM frequency-response inspection with PASS verification. It is not presented as a drop, waterproof or environmental test.

View factory & QC evidence
Evidence to lock during sampling: target curve and tolerance, left-right consistency, connector and cable, microphone or controls, fit, cosmetic standard, accessories, packaging and the agreed inspection method.
RFQ CHECKLIST

Send a complete brief for an accurate quotation.

PRODUCT CONFIGURATION

What the buyer should specify

Target market and channel, estimated quantity, acoustic target, driver direction, connector, cable, microphone, logo, colors, ear tips, accessories and packaging.

SAMPLE APPROVAL

What should be recorded

Approved sample code, frequency-response target, channel tolerance, fit, cosmetic limit, cable and connector, accessories, artwork and inspection method.

OFFICIAL INDUSTRY REFERENCES

Sources buyers can verify independently.

These references provide measurement, USB-audio or safety frameworks; they do not by themselves certify a finished product.

IEC 60268-7:2025Official headphones and earphones characteristics and measurement-method reference.USB-IF · USB Audio DevicesOfficial USB audio device-class specification source for digital-audio projects.IEC 62368-1:2023Official product-safety reference for audio/video and ICT equipment.
BUYER FIT & MODEL COMPARISON

Where SP-305 fits in an OEM product line.

BEST-FIT PROGRAM

Audio brands and distributors seeking a technical triangular faceplate and a darker performance-oriented appearance.

Use the approved sample to confirm the acoustic target, fit, appearance, cable or connector and packaging before committing to production.

DECISION POINT

Choose by application, not appearance alone.

Compare input type, driver direction, cable structure, target market and packaging plan. JRT Audio will quote after the configuration is confirmed.

SP-306Type-C digital HiFi IEM with a smooth metallic housing, dark braided ear-hook cable and 10 mm dynamic driver.SP-308Type-C digital HiFi IEM with a black frame, brushed-silver faceplate and 10 mm dynamic driver.SP-301Type-C digital HiFi IEM with a blue marble faceplate, transparent ear-hook cable direction and 10 mm dynamic driver.
PROCUREMENT FAQ

Questions buyers ask about SP-305.

Can SP-305 be customized for a private-label project?

Yes. The project brief can cover logo, finish, cable or connector direction, accessories, packaging and acoustic targets. Feasibility is confirmed against the selected configuration.

How is the sample approved before production?

Record the approved sample code, frequency-response target, channel consistency, fit, cosmetic standard, accessories, artwork and inspection method before mass production.

How do I receive an accurate quotation?

Send the target market, expected order scale, acoustic target, connector and cable requirements, microphone or controls, logo, colors, accessories and packaging. Pricing follows the confirmed configuration.

DIRECT MODEL RFQ

Request the current SP-305 specification and sample plan.

Send the intended market, quantity and configuration direction. JRT Audio will reply with the current model information and the next sampling step.

Evaluate SP-305 for your market.

Send the configuration brief and request the current specification plus sample plan.

Request SP-305 detailsOpen RFQ form