S M L
WHAT’S 
IN THE 
BOX
quick
start 
guide 
how 
to 
wear
power
on &
connect
MULTI-POINT 
CONNECTION
Charging
led 
behaviors
BUTTON 
COMMAND
1
2
3
To switch music source, pause the music on the 
current device and select play on the 2
nd
 device.
Phone call will always take priority.
If one device goes out of bluetooth range or powers 
off, you may need to manually reconnect the 
remaining device. 
4
SELECT “forget this device” on your bluetooth 
devices to disconnect multi-point. 
1
st
 
bluetooth device
2
nd
 
bluetooth device
ON
Choose "JBL TUNE125BT" to connect
Settings Bluetooth
Bluetooth
DEVICES
JBL TUNE125BT
Now Discoverable
Connected
TUNE
125
BT
×2
1H  
10MIN
TECH
SPEC
Model:   TUNE125BT
Driver Size:   8.6 mm / 0.34'' Dynamic driver 
Power supply:   5 V         1 A
Weight:  18.3 g / 0.04 lbs
Headset battery type:  Lithium-ion battery (3.7 V / 130 mAh)
Charging time:   < 2 hrs 
Music playtime with BT on:   up to 16 hrs
Frequency response:   20 Hz – 20 kHz
Impedance:  16 ohm
Sensitivity:   95 dB SPL @1kHz 1mw
Microphone sensitivity:   -29 dBV/Pa @1kHz
Bluetooth version:  5.0
Bluetooth profile version:   HFP 1.7, A2DP 1.3, AVRCP 1.6 
Bluetooth transmitter frequency range:   2.4 GHz- 2.4835 GHz
Bluetooth transmitted power:   < 6 dBm
Bluetooth transmitted modulation:   GFSK, π/4 DQPSK, 8DPSK
Maximum operation temperature:   45 °C
3
2
1
4
S M L
Choose "JBL TUNE125BT" to connect
ON
Settings Bluetooth
Bluetooth
DEVICES
JBL TUNE125BT
Now Discoverable
Connected
POWER ON AND 
AUTOMATICALLY ENTER PAIRING MODE
>2S
>
2
S
>
2
S
×1
×1
 (Maximum 2 devices)
*
Enter pairing mode with the 2
nd
 device
>
2S
>
2
S
×1
×2
SIRI
®
 
GOOGLE ASSISTANT 
BIXBY
×1
2
S
>
2
S
S M L
WHAT’S 
IN THE 
BOX
quick
start 
guide 
how 
to 
wear
power
on &
connect
MULTI-POINT 
CONNECTION
Charging
led 
behaviors
BUTTON 
COMMAND
1
2
3
To switch music source, pause the music on the 
current device and select play on the 2
nd
 device.
Phone call will always take priority.
If one device goes out of bluetooth range or powers 
off, you may need to manually reconnect the 
remaining device. 
4
SELECT “forget this device” on your bluetooth 
devices to disconnect multi-point. 
1
st
 
bluetooth device
2
nd
 
bluetooth device
ON
Choose "JBL TUNE125BT" to connect
Settings Bluetooth
Bluetooth
DEVICES
JBL TUNE125BT
Now Discoverable
Connected
TUNE
125
BT
×2
1H  
10MIN
TECH
SPEC
Model:   TUNE125BT
Driver Size:   8.6 mm / 0.34'' Dynamic driver 
Power supply:   5 V         1 A
Weight:  18.3 g / 0.04 lbs
Headset battery type:  Lithium-ion battery (3.7 V / 130 mAh)
Charging time:   < 2 hrs 
Music playtime with BT on:   up to 16 hrs
Frequency response:   20 Hz – 20 kHz
Impedance:  16 ohm
Sensitivity:   95 dB SPL @1kHz 1mw
Microphone sensitivity:   -29 dBV/Pa @1kHz
Bluetooth version:  5.0
Bluetooth profile version:   HFP 1.7, A2DP 1.3, AVRCP 1.6 
Bluetooth transmitter frequency range:   2.4 GHz- 2.4835 GHz
Bluetooth transmitted power:   < 6 dBm
Bluetooth transmitted modulation:   GFSK, π/4 DQPSK, 8DPSK
Maximum operation temperature:   45 °C
3
2
1
4
S M L
Choose "JBL TUNE125BT" to connect
ON
Settings Bluetooth
Bluetooth
DEVICES
JBL TUNE125BT
Now Discoverable
Connected
POWER ON AND 
AUTOMATICALLY ENTER PAIRING MODE
>2S
>
2
S
>
2
S
×1
×1
 (Maximum 2 devices)
*
Enter pairing mode with the 2
nd
 device
>
2S
>
2
S
×1
×2
SIRI
®
 
GOOGLE ASSISTANT 
BIXBY
×1
2
S
>
2
S