Wygrałem je w rajdzie rowerowym. Paczka została otwarta tylko po to, żeby sprawdzić stan i działanie — wszystko działa bez zarzut.
Sam słuchawek nie używam, a jako student wolę przeznaczyć pieniądze na coś innego niż gadżety.

Cena: 150 PLN (do negocjacji)

Oficjalny opis oraz specyfikacje:
Description

Wireless on-ear headphones with JBL Pure Bass sound

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.

Specs
General Specifications

Driver size (mm)
33
Number of Microphones
1

Audio Specifications

Driver sensitivity at 1kHz/1mW (dB)
102 dB SPL(at) 1kHz 1mW
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
Ear Cup Depth (cm)
1.7
Ear Cup Depth (in)
0.7
Ear Cup External Height (cm)
3.2
Ear Cup External Height (in)
1.3
Ear Cup External Width (cm)
7.3
Ear Cup External Width (in)
2.9
Ear Cup Internal Height (cm)
3.2
Ear Cup Internal Height (in)
1.3
Ear Cup Internal Width (cm)
3.2
Ear Cup Internal Width (in)
1.3
Weight (g)
157
Weight (oz)
5.54

Control and Connection Specifications

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

Battery

Charging time (hours from empty)
2
Maximum play time (hours)
57

Features

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