JBL Rock uses a sound cavity design, with a passive bass diaphragm at the back of the product, to create a more expressive, three-frequency balanced sound performance.
Compared with the traditional Bluetooth speaker, in the case of unchanged volume, the sound is louder and better performance.
The built-in rechargeable battery supports up to 8 hours of playback time, and the built-in microphone supports Bluetooth connection for one-click calls. From the appearance point of view, the Rock uses a delicate anodized aluminum shell with a leather lanyard, and the overall design of the product is strong, whether it is used at home or carried around.