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Small black Bluetooth ear-hook module with C-pin connector, 4.5g

KZ AZ09 Pro Bluetooth 5.2 Module C pin 4.5g

SKU CH-57CB-25TSK

Bluetooth 5.2 adapter turns wired IEMs into wireless earphones, weighs 4.5g and gives up to 15 hours of music time

  • Talk durationUp to 15 hour(s)
  • Music playtimeUp to 15 hour(s)
  • Standby duration14 h
  • Bluetooth standard5.0
  • Battery packLithium polymer, 14 h, 10.2 g, 3, true, 1.48 Wh
  • Product colorBlack
  • Turns wired IEMs wireless with 0.75 mm or 0.78 mm C-pin connectors
  • Bluetooth 5.2 and Qualcomm QCC3040 chipset deliver stable aptX, AAC and SBC audio
  • Up to 15 hours music or talk time from a single charge
  • Waterproof ear-hook design weighs only 4.5 g for comfortable all-day wear
  • One multi-function button handles calls, playback and track switching

What This Module Does

The KZ AZ09 Pro adds Bluetooth 5.2 wireless capability to compatible in-ear monitors that use a C-pin 0.75 mm or 0.78 mm connector. It weighs 4.5 g per ear-hook and uses a Qualcomm QCC3040 chipset with AptX, AAC and SBC decoding. The module is waterproof and rated for up to 15 hours of music or talk time per charge.

Check Your IEMs First

Confirm that your earphones have a detachable cable with a C-pin 0.75 mm or 0.78 mm 2-pin connector; other pin types will not fit. The package contains only the wireless ear-hooks and a charging case — no earphones are included. Each hook holds a 400 mAh battery and the case provides four additional full charges for both sides.

Who Should Buy — And Who Should Not

Suitable for owners of supported KZ and CCA models who want a lightweight wireless upgrade without replacing their existing drivers. Not suitable for listeners whose IEMs use MMCX, 0.75 mm recessed, or any non-C-pin connector, or for buyers who need active noise cancellation or on-board storage.

How it compares

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

Price $55.99
Pricier than about 72% of the 870 comparable items (median $30.99).

Specifications

Product
Brand nameSuperTooth
Product lineKZ AZ09 Pro
Model nameKZ AZ09 Pro
Product colorBlack
Connectivity
Bluetooth standard5.0
Power
Talk durationUp to 15 hour(s)
Music playtimeUp to 15 hour(s)
Standby duration14 h
Battery packLithium polymer, 14 h, 10.2 g, 3, true, 1.48 Wh
Size & build
Product weight4.5 g
Compatibility
Compatible withHeadphone

Questions about this item

Does the package include the IEMs or just the Bluetooth module with C-pin connectors?

Only the Bluetooth module with C-pin connectors is supplied; the compatible IEMs such as ZS10 PRO or ZSN Pro X must be purchased separately.

Should I choose the 0.75 mm or 0.78 mm pin version for my KZ ZS10 PRO?

The KZ ZS10 PRO uses 0.75 mm pins, so select the 0.75 mm version of this module for a correct fit.

What does the 15-hour music-time figure mean for daily use with the charging case?

Each charge gives up to 15 hours of playback, and the 400 mAh case provides about four extra charges for roughly 40 hours total before the case needs recharging.

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