JBL Tune 520BT Wireless Bluetooth On-Ear Headphones

Audio & Hardware

• Driver size: 33 mm (dynamic driver)
• Frequency response: 20 Hz – 20 kHz
• Impedance: 30 ohms
• Sensitivity: 102 dB SPL @ 1 kHz / 1 mW

Connectivity & Controls

• Bluetooth version: 5.3
• Bluetooth profiles: HFP 1.7.2, AVRCP 1.6.2, A2DP 1.3.2
• Bluetooth frequency range: 2.4 GHz – 2.4835 GHz
• Built-in microphone: Yes, for hands‑free calls and voice assistant control
• On‑ear design with controls on the earcup for play/pause, volume, calls, and access to voice assistant (Siri / Google)

Battery & Playback

• Battery life: Up to 57 hours of playback on a full charge
• Charging time: ~2 hours from empty
• Speed charge feature: About 5-minute charge gives ~3 hours playback

Physical & Build

• Weight: 157 g
• Foldable design — easy to carry and store
• Comfortable on‑ear cushions and padded headband for extended listening

Features & Extras

• Sound tuning: JBL “Pure Bass Sound” for rich bass output
• Multi‑point Bluetooth connection — can connect to multiple devices and switch between them easily
• Compatible with voice assistants (Siri / Google Assistant) via earcup button