We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small green Bluetooth 4.1 receiver with ear-hook and clip

ESTONE

ESTONE AX-03 Bluetooth 4.1 receiver, Green

SKU CH-1N77-XF1HR

Bluetooth 4.1 receiver adds wireless audio to any 3.5 mm headphones, supports two devices and six hours of talk time

  • Talk durationUp to 6 hour(s)
  • Product colorGreen
  • Product typeBluetooth Accessories
  • Up to 6 hours of talk time per charge
  • Bluetooth 4.1 for wireless music and clear calls
  • Connect two phones simultaneously
  • 5 mm jack works with any wired headphones
  • Clip-on design keeps the receiver secure during sport

Universal Bluetooth 4.1 adapter

This compact receiver adds Bluetooth 4.1 connectivity to any device with a 3.5 mm audio input. It pairs with two phones or tablets simultaneously so you can switch between calls and music without re-pairing. The post-hook clip keeps it secure on clothing or a bag strap during sport or commuting.

Battery life and power draw

A built-in 3.7 V 60 mAh battery delivers up to 6 hours of talk time on a single charge. The low-energy Bluetooth 4.1 protocol keeps power draw minimal during normal playback and calls. No active cooling is required, so the unit runs completely silent in everyday use.

Sustained use behaviour

During long listening sessions the receiver maintains a stable 2.4 GHz link without noticeable drop-outs. The small battery capacity means extended all-day use will require a recharge break. It is not suited for users who need continuous operation beyond the rated talk time without access to a charger.

How it compares

Measured against everything we stock in Bluetooth Earbuds & Headsets, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 84% of the 870 comparable items (median $30.99).

Specifications

Product
Brand nameESTONE
Product lineAX-03
Model nameAX-03
Product colorGreen
Product typeBluetooth Accessories
Power
Talk durationUp to 6 hour(s)

Questions about this item

How do I pair the AX-03 receiver with my phone, and what step do people often miss?

Turn on the receiver, enable Bluetooth 4.1 on your phone, select AX-03 from the device list, then pair a second phone the same way — many forget the second pairing step.

Which part will need replacement first on the AX-03?

The built-in 3.7V 60mAh battery is not user-replaceable; once its capacity drops after repeated charge cycles the whole receiver must be replaced.

What limit appears first during a long listening session with the AX-03?

Talk time is rated up to 6 hours; after that the battery runs out and the receiver stops working until recharged.

More in Bluetooth Earbuds & Headsets

Similar items