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The Rumble is a relatively heavy device, with a black and grey finish, and a large, wraparound speaker screen across the front in basketball orange. First impressions showed some promising design features, like dual sound ports at the rear, and a rubberized bottom to help minimize unwanted resonance. However, we must admit that the Rumble’s plastic frame seems slightly flimsy, and its humdrum exterior components struck us as a bit out of step with other devices we’ve tested in its class (including the highly impressive OnBeat Extreme). 

The JBL Cinema SB400 powered soundbar speaker system is a complete, integrated sound system that will create an extraordinarily realistic cinema experience in your own living room. The powered soundbar unit can mount on a wall or sit on a shelf and includes all of the cables you need to connect it to your TV and your cable/satellite tuner or disc player. The wireless subwoofer unit supplies all of your entertainment's drama and impact, and can be placed anywhere without needing to be connected to the soundbar unit.

Stream music wirelessly via Bluetooth to enjoy room-filling sound. Connect up to 3 smart devices at the same time and take turns playing music.Rechargeable battery up to 8 hours of playtime and charges your smartphones and tablets via USB.Dual Microphone Conferencing System Wireless Dual SoundWirelessly connect two Harman Kardon
Wireless Dual Sound enabled speakers together to elevate your music listening experience.