Take thunderous audio to your parties, picnics, gatherings, and more with the Monster Rockin’ Roller 4. Enhance the soundfield with the built-in slots and locking latch allowing second Roller 4 speaker to be stacked on top, effectively doubling your sound. This is enabled through the True Wireless System, syncing two Rockin’ Roller 4 speakers together for wireless audio streaming without additional wires or other connections.

A true party speaker, the Roller 4 features a bottle opener in the back of the speaker, for convenient, one-handed cap removal. Great for those who love the outdoors, the Roller 4 can access local NOAA Weather Radio Channels, keeping them informed about changing weather conditions.