I bought this for my husband's birthday on 2/16 at Sams Southwest Austin. We are going to use it to take to the beach for Spring Break with the family. The sound is so clear. The only weird thing is the alarm. Haven't figured out how to shut it off for good. My kids loved the microphone option. This is a great purchase. You wont regret it.

I am returning this unit, especially after reading the reviews. I bought it for Bluetooth use but the volume is way too low even when turned up to the maximum! If I switch it to FM, the volume is great! This is a huge problem. Also, those alerts go off constantly and cut out the music! No way to shut them off for good! I refuse to pay this much simply for a "radio!"

Actually I was searching a good speaker with the karaoke system...I saw a lot of review about the ION and MONSTER speakers and finally I decided to go with the Monster RR4. I like the design very much.Battery life is awesome.2 mic port and comes with a mic. 2 usb port to charge your device.

Bought this used one time now the battery will not charge. Threw box away don’t think I can return it

The first Monster Rockin Roller 4 I bought was completely non functional. Exchanged it for a second one, which would not charge. Monster Audio customer service was zero help. Told me to try replacing again. Um....no thanks. Awful product!

I really, really liked this speaker. It feels well made. It sounds great. It has one MAJOR flaw: It does not remember your bass and treble settings. Everytime you turn it on you have to adjust them and its not as simple as two analog knobs. There's a button to push and a knob to turn then press again to adjust the treble. I've NEVER had a radio/stereo/TV do this. I just got off the phone with MONSTER Tech Support and the nice gentleman confirmed this. So sad I'm going to have to return this.

I don't know about the Rockin Roller 4, but I bought a Rockin Roller 3 about 2 years ago.....and the speaker just stopped functioning. The battery life was never expended....it actually held charge for an unbelievable amount of time. I was using the speaker on Fourth of July, and suddenly the speaker just turned off. The only thing that functioned was the battery gauge ....that read level 3 (full charge) None of the buttons worked, and the unit just wont turn. Unfortunately...it is passed manufacturer's warranty and Sam's return policy of 90 days. I am reluctant to buy another monster speaker....even though when it worked it was a good speaker.

I bought this 15 months ago and it died. Monster told me sorry it’s out of warranty.

Bluetooth volume could be a bit better , but very pleased so far , kids love to sing along with the Mic!

Love how high the handle comes and the sturdiness. But I am going back to the ion speaker because it is much louder in a gymnasium.