EngraSun
EngraSun Transparent TWS Earbuds AIR31 — white-background product photo
Model AIR31

Transparent TWS Earbuds AIR31

Transparent-design TWS earbuds in five Morandi tones with LED battery display.

Bluetooth Headset · TWS Earbuds
  • Transparent design in Morandi tones, 5 colours
  • Titanium-dome PEEK driver for balanced sound
  • LED battery display for at-a-glance charge status
  • Only about 3.5g per earbud, ergonomic fit
  • Bluetooth 5.3, up to 24 hours with charging case
Request a Quote for AIR31

Available for wholesale distribution and for private-label OEM/ODM customization.

WhatsApp us Email us

Pricing, MOQ and lead time are confirmed with every quotation. This page shows no list prices.

Features & use cases

AIR31 in action

Key functions, interface highlights and typical usage scenarios for the AIR31, based on the official English product detail graphics.

EngraSun AIR31 — feature and use-case detail 1 EngraSun AIR31 — feature and use-case detail 2 EngraSun AIR31 — feature and use-case detail 3 EngraSun AIR31 — feature and use-case detail 4 EngraSun AIR31 — feature and use-case detail 5 EngraSun AIR31 — feature and use-case detail 6
Specifications

AIR31 technical details

Verified specifications from the AIR31 product specification documents. Items not listed are confirmed at quotation.

Audio
Driver8 mm titanium-dome PEEK composite diaphragm
Sensitivity104 ± 2 dB
CodecsAAC / SBC
FeaturesMaster-slave switching, smart touch, voice-assistant wake, LED battery display
Connectivity
Chipset5616T3
WirelessBluetooth 5.3, 6–10 m range
Battery & durability
Battery30 mAh per earbud + 150 mAh charging case
EnduranceApprox. 4 hours continuous use; approx. 24 hours with case; approx. 4 h calls
Quick charge10 minutes charging for 1.5 hours use
Water resistanceDaily sweat & splash resistant (no IP rating)
Design
WeightApprox. 3.5 g per earbud
Colours5 transparent Morandi tones: ice blue, pink, grey, green and more

Specifications are based on manufacturer documentation and may vary between production runs. CE, FCC, RoHS and TELEC certification support is available for OEM orders; applicable certifications are confirmed per model and destination market.

OEM / ODM customization

Make the AIR31 your own

Every EngraSun product is available for wholesale distribution and for full B2B customization — from laser-engraved branding to packaging and certification.

Laser-engraved logo & branding
ID & colour matching
Custom packaging
Firmware configurationAvailable on request
Custom boot sound / logoAvailable on request
Multi-language manuals
Certification assistance

Plan your AIR31 program

Tell us your target market, quantities and customization needs — we reply with a tailored proposal.

Start your inquiry See our OEM process
FAQ

AIR31 — common buyer questions

MOQ, branding options, certification and app support for the AIR31, answered for B2B buyers.

What is the MOQ for the AIR31?

Minimum order quantity for the AIR31 depends on the customization level. Orders based on the existing AIR31 molds with logo and packaging customization start at lower quantities, while custom industrial design, new tooling or bespoke firmware requires higher volumes. The exact MOQ is confirmed in our quotation.

Can the AIR31 be customized with our own brand?

Yes. The AIR31 is available for private-label OEM/ODM: laser-engraved branding, custom colours and materials, boot logo, packaging, manuals and certification assistance. Wholesale orders without branding are equally welcome.

Which certifications can the AIR31 support for export?

Certification assistance covers CE, FCC, RoHS and TELEC. The certifications applicable to the AIR31 for your destination market are confirmed at quotation.

Related products

All products