Monster Open Free AC100 Air Conduction Sports Wireless Headphones

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.

Manage everything like volume, calls and voice assistant with the buttons on earcups. Instruct your headphone in a convenient way.  Robust and stylish-Durable headband slip Crafted from high quality zinc alloy material. A pair of headphones provides both stunning sound and long service life.  Overear Comfort-Improve comfort by enlarge earpads. The memory foam earpads cover around your ears, reduce stress and let you focus on the music. Sound leaking in the library, coffee shop or metro? No longer a burden. Your music is safe with you when putting BT80 on. The premium earpads material effectively avoid sound spilling.  Compact folding design-Enjoy high quality wireless music wherever you go and fold it to a handy size to keep in your bag.

Specifications:

Wireless version: V5.1

Working distance: Up to 10m

Impedance: 32Ω±15%

Driver: 40mm

Frequency: 20Hz-20000Hz

Battery: 300mAh, Rechargeable

Talking/play time: About 20 hours

Standby time: Up to 200 hours

Non-replaceable lithium ion-polymer

Power requirement: DC 5V 1A