JBL TUNE 520BT

[11:45 PM, 7/17/2026] karl: DESCRIPTION
The JBL Tune 520BT headphones stream powerful JBL Pure Bass sound thanks to the latest 5.3 BT technology. Easy to use, these headphones provide up to 57 hours of pure pleasure and an extra 3 hours of battery with just 5 minutes of charge. Download the free JBL Headphones App and customize your sound through the EQ, while Voice Prompts guide you through the headphones features. Manage calls, sound and volume from the earcup, thanks to the convenient button control. If a call comes in while you are watching a video on another device, the JBL Tune 520BT seamlessly switches to your mobile device, so you never miss a call. Lightweight and comfortable even after hours of listening, the JBL Tune 520BT headphones fold flat in your backpack to follow you everywhere.
[11:46 PM, 7/17/2026] karl: SPECS
General Specifications

Driver size (mm)
33
Activity
Leisure
Number of Microphones
1
Audio Specifications

Driver sensitivity at 1kHz/1mW (dB)
102
Dynamic frequency response range (Hz)
20 Hz - 20 kHz
Impedance (ohms)
30
Dimensions

Audio Cable Length (ft)
0.7
Audio Cable Length (m)
0.2
Weight (oz)
5.54
Ear Cup External Height (in)
1.3
Ear Cup External Width (in)
2.9
Ear Cup Internal Height (in)
1.3
Ear Cup Internal Width (in)
1.3
Ear Cup Depth (in)
0.7
Ear Cup External Height (cm)
3.2
Ear Cup External Width (cm)
7.3
Ear Cup Internal Height (cm)
3.2
Ear Cup Internal Width (cm)
3.2
Ear Cup Depth (cm)
1.7
Weight (g)
157
Control and Connection Specifications

Bluetooth frequency
2.4 GHz – 2.4835 GHz
Bluetooth profiles
HFP 1.7.2, AVRCP 1.6.2, A2DP 1.3.2
Bluetooth transmitted modulation
GFSK, π/4-DQPSK, 8-DPSK
Bluetooth transmitter power
6 dBm (E.I.R.P)
Bluetooth version
5.3
Connection
Wireless
Connectivity Technology
Bluetooth
Battery

Charging time (hours from empty)
2
Battery Life
57
Maximum play time (hours)
57
Features

Voice Aware
Yes
Built-in Microphone
Yes
Charging cable
Yes
Foldable
Yes
Hands Free Call
Yes
JBL Pure Bass Sound
Yes
Multi-Point Connection
Yes
On-ear
Yes
Rechargable battery
Yes
Speed charge
Yes
Wireless
Yes
Bluetooth
Yes
JBL Headphone App
Yes