Turns your earphones into a Bluetooth 4.2 headset
KZ Bluetooth 4.2 Cable
Qualcomm CSR8645 Bluetooth Chip AptX Patent Technology
- Professional mems microphone
- Excellent Noise Cancellation
- Excellent Bluetooth Connection
- ACC-LC Advanced Coding
Product List
- KZ AE01
- KZ AM01 Type-C DAC
- KZ AS10
- KZ AS12
- KZ AS16
- KZ AS16 Pro
- KZ AS16 Pro X
- KZ AS24
- KZ ASF
- KZ AST
- KZ ASX
- KZ AZ09 Ear Hooks
- KZ AZ09 Pro Ear Hooks
- KZ AZ10 Ear Hooks
- KZ AZ15 Ear Hooks
- KZ AZ20 Ear Hooks
- KZ Bluetooth 4.2 Cable
- KZ Bluetooth 5.0 Cable
- KZ BTE
- KZ Castor
- KZ x Crinacle CRN
- KZ D-Fi
- KZ DQ6
- KZ DQS
- KZ E10
- KZ ED
- KZ EDA
- KZ ED4
- KZ ED9
- KZ EDC
- KZ EDCX
- KZ EDS
- KZ EDX
- KZ EDX Lite
- KZ EDX Pro
- KZ EDX Pro X
- KZ EDX Ultra
- KZ EDXS
- KZ ESX
- KZ GP20
- KZ H10
- KZ x HBB DQ6S
- KZ Krila
- KZ Libra
- KZ Ling Long
- KZ Merga
- KZ PR1
- KZ PR1 Pro
- KZ X HBB PR2
- KZ PR3
- KZ S1 / KZ S1D
- KZ S2
- KZ SA08
- KZ SA08 Pro
- KZ SK10
- KZ SK10 Pro
- KZ SKS
- KZ Symphony
- KZ T10
- KZ Vader
- KZ VX10
- KZ VXS
- KZ VXS Pro
- KZ XZ10 Ear Hooks
- KZ Z1
- KZ Z1 Pro
- KZ Z3
- KZ ZAR
- KZ ZAS
- KZ ZAT
- KZ ZAX
- KZ ZES
- KZ ZEX
- KZ ZEX Pro
- KZ ZNA
- KZ ZS10 Pro
- KZ ZS10 Pro 2
- KZ ZS10 Pro X
- KZ ZS3
- KZ ZS3E
- KZ ZS4
- KZ ZSN
- KZ ZSN Pro
- KZ ZSN Pro 2
- KZ ZSN Pro X
- KZ ZST X
- KZ ZSX
- KZ ZVX
Qualcomm CSR8645 Bluetooth Chip AptX Patent Technology
Qualcomm CSR8645 is a powerful Bluetooth chip. Excellent connection stability, support AptX lossless audio transmission technology, supports AAC-LC advanced audio coding technology, supports EDR Bluetooth enhanced rate. Support CVC 4 noise reduction technology, etc. It is the representative of Bluetooth wireless connection technology on the market.
APTX technology carries out a digital audio compression algorithm and lossless transmission. Reproduce professional-grade pure wireless sound quality.
APTX technology carries out a digital audio compression algorithm and lossless transmission. Reproduce professional-grade pure wireless sound quality.

Professional mems microphone Excellent Noise Cancellation


Excellent Bluetooth Connection Performance Using Qualcomm CSR8645 Bluetooth chip
Qualcomm CSR8645 is renowned for its excellent connection stability, low power connection technology, and high-quality audio transmission.
It is the representative of Bluetooth wireless connection technology on the market, with 3 seconds of fast connection, excellent connection speed, and more robust signal anti-interference ability.
It is the representative of Bluetooth wireless connection technology on the market, with 3 seconds of fast connection, excellent connection speed, and more robust signal anti-interference ability.

Bluetooth 4.2 + EDR Bluetooth Enhanced Rate
Bluetooth 4.2 with EDR significantly improved the data transmission rate. It’s three times as better as common Bluetooth, and let Bluetooth transmit faster, transmit more steadily, higher efficiency, and consume less power.

ACC-LC Advanced Coding Technology
Compatible with Apple's lossless transmission mode
AAC (Advanced Audio Coding) encoding format is better than MP3, better sound quality, smaller files, faster transmission.

Industrial Grade Ceramic Antenna
The sensitivity of Bluetooth reception is better
With an industrial-grade ceramic antenna, the transmission is more stable, and gain is higher. The antenna’s size was decreased, but sensitivity has increased, and the noise level of the receiving circuit has decreased by 1/3. Bluetooth transmission is now more reliable.

130mAh Battery Capacity
Long endurance 8 hours
Built-in 130mAh safety lithium battery brings over 8 hours of wireless listening after full power, 100 hours long standby. Bid farewell to frequent charging.
130 mAh Battery
100 Hours Long Standby
2 Hours Fast Charge
*All the above data are measured by KZ acoustic laboratory.
The actual use may be slightly different depending on the specific circumstances.
The actual use may be slightly different depending on the specific circumstances.

IPX5 Waterproof Function Waterproof, anti-sweat, experience the freedom of Bluetooth
Running, playing, and cycling, it fits your ears every moment, and the waterproof, sweat-proof features allow you to play freely and freely.

Balanced wear Comfortable Lightweight without falling ear Long-wear does not fall off
Wire control and battery symmetry design bring a balanced wear experience. The ear hook uses a metal memory wire, which can be adjusted according to your ear.
A Paragraph Pin
Suitable for KZ ZS3, KZ ZS4, KZ ZS5, KZ ZS6, KZ ZSA, and many other headphones.

B Paragraph Pin
Suitable for KZ ZST, KZ ZS10, KZ ES4, KZ ZSR, KZ ES3, and many other headphones.

C Paragraph Pin
Suitable for KZ ZSN and other many headphones.

MMCX Pin
Headphones adapted to MMCX plugs.

To protect the device’s life and your safety, please use the charger with the maximum output current below 1.5A, which supports fast charging is not advised.
Wire Control Operation Some oldest phone may not be supported
Boot: Press the ► key in the shutdown state. Blue LED lights flashing, while the boot prompts.
Pairing: Keep press ► key to enter the pairing mode. Red and blue LED lights flash alternately, while voice prompts.
Music Play/Pause: Keep press ► key to enter the pairing mode. Red and blue LED lights flash alternately, while voice prompts.
Volume Increases: Press the + key. When the volume is maximum, there is a voice prompt.
Volume Reduction: Press the — key until mute.
Previous Track: Keep press — to play the previous track.
Next Track: Keep press + to play the next track.
Shutdown: At standby or operating mode, press ► key for 3 seconds. Red LED lights flash once with voice prompts.
Answer: Press ► to answer the call.
Reject: Keep press ► refused to answer the call.

Bluetooth module upgrade Wire Assembly diagram
Take KZ ZST as an example.

Correctly distinguish Right And Left headphones and wires, as shown in a picture.There are left and right logos on the wire, “L” is on the left, and “R” is right. The front of the headset is placed with the silicone sleeve facing left to the left and the silicone sleeve facing to the right, which is the right side.

The correct assembly of the wire is with the needle head and “L R” logo facing up. Do not assemble the pinhead down, and it will harm sound quality.

Point the wire to the plug and push it in until it fits perfectly.

Since the wire is a design that does not easily come off, please be careful when inserting or pulling.

After the assembly is completed, you can enjoy an unfettered music experience.
Bluetooth module upgrade Wire Operation diagram

Press and hold ► until the blue LED flashes. The Bluetooth module is turned on. At this time, the button is not released, and the red and blue LED lights continue to flash alternately to enter the pairing mode.

Turn on the phone Bluetooth and search for [KZ earphone] to pair.

The red LED flashes and sounds when the battery is low. Insert the charging cable into the charging port, the red LED light will be on during charging, and the blue LED light will be on after the charging is completed.