3.5 mm audio cable Input.

Auto-power off.

Bluetooth.

JBL Connect+.

Powerbank.

Waterproof.

JBL Charge 4 comes with a Bluetooth connection that lets you connect two devices at the same time to it. 

JBL Charge 4 power lasts for 20 hours. This lets you travel with JBL Charge 4 in areas with no power knowing you can play your music without any worries.

With JBL Charge 4 being waterproof, you can take it with you in any weather condition without any worries.