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.

• JBL Pure Bass Sound: The JBL Tune 520BT utilizes the renowned JBL Pure Bass sound, the same technology that powers the most famous venues all around the world.

• Wireless Bluetooth 5.3 Technology: Wirelessly stream high-quality sound from your smartphone without messy cords with the help of the latest Bluetooth technology.

• Customize Your Listening Experience: Download the free JBL Headphones App to tailor the sound to your taste with the EQ. Voice prompts in your desired language guide you through the Tune 520BT features.

• Up to 57H battery life and speed charge (5mins = 3H): For long-lasting fun, listen wirelessly for up to 57 hours and recharge the battery in as little as 2 hours with the convenient Type-C USB cable. A quick 5-minute recharge gives you 3 additional hours of music.

• Hands-free calls with Voice Aware: Easily control your sound and manage your calls from your headphones with the convenient buttons on the ear-cup. Hear your voice while talking, with the help of Voice Aware.

• Multi-point connections: Allows you to effortlessly switch from one Bluetooth® device to another. You can simply switch from a video on your tablet to a call on your mobile phone, so that you'll never miss a call.

Other Features:

• Dynamic frequency response range: 20 Hz – 20 kHz
• 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)