TS-K4 Bluetooth 5.4 TWS Earbuds for OEM & Private Label
B2B Project Information
TS-K4 at a Glance
A mainstream TWS platform combining Bluetooth 5.4, ENC calling, touch control and private-label customization for volume B2B projects.
Bluetooth
Bluetooth 5.4 platform for everyday wireless music and calls.
Calling Support
ENC functionality designed to support clearer voice pickup during Bluetooth calls.
Play Time
Typical earbud playback of approximately five to five and a half hours.
Typical MOQ
Typical B2B project MOQ starts from approximately 1,000 pieces.
Core Features for Mainstream TWS Projects
TS-K4 provides a practical combination of wireless connectivity, calling support and everyday functions for branded TWS earbuds projects.
Bluetooth 5.4
Bluetooth 5.4 provides the wireless platform for music, calls and everyday true wireless applications.
ENC Calling
ENC functionality is designed to improve voice pickup and reduce selected environmental noise during calls.
JL6973D4 Chipset
The TS-K4 configuration described on this page uses the JL6973D4 Bluetooth chipset.
Touch Control
Integrated touch controls provide convenient operation for supported everyday functions.
USB Type-C Charging
The charging case uses a USB Type-C interface for convenient charging.
IPX4
The specified TS-K4 configuration carries an IPX4 water-resistance rating.
Bluetooth 5.4 + ENC Calling
A practical wireless configuration designed around everyday music playback and Bluetooth calling.
Bluetooth 5.4 Platform
Bluetooth 5.4 provides the wireless platform for music playback, voice calls and everyday true wireless use in the specified TS-K4 configuration.
ENC Calling Support
ENC calling functionality is designed to improve voice pickup and reduce selected environmental noise during Bluetooth calls.
TS-K4 Battery Configuration
Each TS-K4 earbud uses a 30mAh battery, while the charging case uses a 250mAh battery. Typical earbud playback is approximately 5–5.5 hours, with total playback reaching approximately 20–24 hours when used with the charging case.
Actual battery performance can vary according to volume, call usage, Bluetooth connection conditions and other operating factors.
Suitable for Private-Label TWS Earbuds Programs
TS-K4 can be evaluated for brands and B2B buyers looking for a mature Bluetooth 5.4 TWS earbuds platform.
Consumer Audio Brands
Private-label Bluetooth earbuds product ranges.
Importers & Distributors
Volume TWS earbuds sourcing projects.
Retail Programs
Branded earbuds with custom retail packaging.
Wholesale Buyers
Bulk Bluetooth earbuds for regional distribution.
TS-K4 Technical Specifications
Core specifications should be confirmed against the final selected configuration before mass production.
Customize TS-K4 for Your Brand
TS-K4 can be used as a mature Bluetooth earbuds platform for OEM and private-label projects. Customization depends on project quantity, technical feasibility and the final confirmed configuration.
From Product Requirement to Mass Production
Tashells Audio supports Bluetooth audio projects from product confirmation and customization through production, inspection and packaging at our production facility in Fenggang, Dongguan, Guangdong, China.
Functional Testing
Applicable checks can include Bluetooth connection, audio, microphones, touch controls, charging and selected product functions.
Appearance Inspection
Housing condition, assembly consistency, logo printing and visible cosmetic details can be checked according to confirmed project requirements.
Packaging Inspection
Accessories, manuals, labels, barcodes and retail packaging are checked against confirmed order requirements.
Documentation for Bluetooth Earbuds Projects
Common documentation can include CE, RoHS, FCC and applicable battery MSDS documentation. Additional project-specific certification or third-party testing can be evaluated according to destination market and customer requirements.
TS-K4 Frequently Asked Questions
What is the MOQ for TS-K4?
What Bluetooth version does TS-K4 use?
Does TS-K4 support ENC calling?
Does TS-K4 support ANC?
How long does the TS-K4 battery last?
What colors are available?
Can we customize our logo and packaging?
Can we order samples before mass production?
More TWS Earbuds & Manufacturing Resources
Looking for TS-K4 OEM Pricing?
Tell us your target market, expected quantity, branding requirements, packaging needs and other product requirements. Our team can evaluate the appropriate TS-K4 configuration for your project.










