JBL TUNE125BT Quick Start Guide

What's in the Box

The package includes the JBL TUNE125BT headphones and accessories.

How to Wear

Instructions on how to properly wear the JBL TUNE125BT headphones for optimal fit and sound.

Power On & Connect

Turn on the headphones and they will automatically enter pairing mode. Select "JBL TUNE125BT" on your device to connect.

Button Commands

Detailed explanation of button functions for controlling music playback, calls, and voice assistants.

Voice Assistant Supported

The JBL TUNE125BT supports voice assistants like Siri®, Google Assistant, and Bixby.

Multi-Point Connection

Connect up to two devices simultaneously. To switch music sources, pause music on the current device and select play on the second device. Phone calls always take priority. If a device goes out of Bluetooth range or powers off, you may need to manually reconnect it. To disconnect multi-point, select "Forget This Device" on your Bluetooth devices.

Charging

Charge the headphones using the provided USB cable. A full charge takes less than 2 hours.

LED Behaviors

Understanding the LED indicators for power status, Bluetooth connection, and battery level:

Power On/Off: Indicates the power status.
No Device Connected: The headphones are on but not connected to any device.
BT Connecting: The headphones are attempting to connect via Bluetooth.
BT Connected: The headphones are successfully connected via Bluetooth.
Low Battery: The battery level is low.
Charging: The headphones are currently charging.
Fully Charged: The headphones are fully charged.

Tech Spec

Model: TUNE125BT

Driver Size: 8.6 mm / 0.34" Dynamic driver

Power supply: 5V-1A

Weight: 18.3 g / 0.04 lbs

Headset battery type: Lithium-ion battery (3.7V / 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

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