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Small black rectangular Bluetooth 4.1 receiver with back clip and 3.5mm jack

ESTONE

ESTONE AX-03 Bluetooth 4.1 receiver, Black

SKU CH-0ES7-8TF1V

A Bluetooth 4.1 receiver adds wireless audio to any 3.5 mm headphones and pairs two devices simultaneously

  • ColorBlack
  • TypeBluetooth Accessories
  • Talk TimeUp to 6 hour(s)
  • Up to 6 hours of talk time per charge
  • Bluetooth 4.1 for stable wireless streaming
  • Connect two phones simultaneously
  • 5 mm jack works with any wired headphones
  • Clip-on design keeps the receiver secure during sport

What the ESTONE AX-03 Is

The ESTONE AX-03 is a new Bluetooth 4.1 receiver that plugs into any 3.5 mm audio jack, turning wired headphones or speakers into wireless ones. It supports A2DP, AVRCP, HFP and HSP profiles for music and calls, and can pair with two devices simultaneously.

Who This Suits and Who It Does Not

Commuters and gym users who want to keep their favourite wired earphones but need cable-free movement will find the clip-on design convenient. Buyers who want more storage or built-in playback controls should look at something else, as this unit only receives audio and offers basic inline buttons.

Behaviour Under Sustained Use

The internal 3.7 V 60 mAh battery delivers up to 6 hour talk time, so a full workday or long journey may require a recharge break. Continuous streaming at typical volumes stays within that window, while standby periods extend the interval between charges.

Highlights

  • Up to 6 hours of talk time per charge
  • Bluetooth 4.1 for stable wireless streaming
  • Connect two phones simultaneously
  • 5 mm jack works with any wired headphones
  • Clip-on design keeps the receiver secure during sport

Specifications

BrandESTONE
SeriesAX-03
ModelAX-03
ColorBlack
TypeBluetooth Accessories
Talk TimeUp to 6 hour(s)

Questions about this item

Which wired headphones can I plug into the AX-03's 3.5 mm jack?

Any headphones or earphones with a standard 3.5 mm stereo plug will work, letting the receiver turn them into a wireless Bluetooth 4.1 headset.

Can I keep two phones paired to the AX-03 at the same time?

Yes, the receiver supports simultaneous connection to two Bluetooth devices so you can switch between them without re-pairing.

How do I know the AX-03 is paired and ready after I turn it on?

The LED indicator flashes blue when the receiver is in pairing mode and shows a steady or slow-blinking blue once a Bluetooth 4.1 link is established.

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