Is this fully bluetooth? I.E. the soundbar, the sub, and the rear speakers are truly wireless and sync with blutooth?

I bought this from Walmart, but is the same model: SB3651-E6. The subwoofer is wireless. That meas the soundbar is hooked to the TV via HDMI, optical audio or, regular audio wires. The subwoofer is wireless, which saves you the trouble of running wire across the room. The rear speakers are wired to the subwoofer, which means yo can place the sub on the side of the room or the back so it can feed the rear speakers. Hopefully I was able to answer your question.

Every few minutes the voulme goes off and then soon within a second it comesback on by itself. even soundbar lights also toggles. any suggestions?

I had the same problem. You have it set to Energy Saver ON. When no sound is present for a few minutes it will turn the sound bar and Sub Off. Using the Remote, click on the Options button then arrow up or down till you see Energy Saver YES/NO. Select NO. The Sound Bar will not turn off till you turn it off. I thought there was a problem with the unit till I found it on the remote.

Is this Dolby Atmos enabled?

Yes it is. See pages 23 and 39 of the manual. I just checked myself. Never knew because I always used it for PlayStation 4 and Switch, but now I have a Series X and has Dolby Atmos enabled games.

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Description

🎶 Elevate your home audio game—because basic sound just won’t cut it.

SMART VOICE CONTROL - Hands-free control with Google Assistant integration for ultimate convenience.
PLUG PLAY VERSATILITY - Multiple inputs including HDMI, optical, and analog for all your entertainment needs.
SLEEK SPACE SAVING DESIGN - 36-inch bar mount fits perfectly in modern living spaces without clutter.
SEAMLESS WIRELESS STREAMING - Stream effortlessly via Wi-Fi or Bluetooth from any device, no cables needed.
IMMERSIVE 5 1 SURROUND SOUND - Feel every beat with 101 dB clarity and wireless subwoofer bass boost.

The VIZIO SmartCast 36" 5.1 Wireless Soundbar System (SB3651) delivers immersive surround sound with 101 dB output, featuring wireless rear speakers and subwoofer. Equipped with Wi-Fi, Bluetooth, Google Assistant, and Chromecast support, it offers versatile streaming and voice control. Multiple input options and a sleek 36-inch design make it a perfect upgrade for any modern home theater setup.

Specifications

Mounting Type	Bar Mount
Model Name	SB3651
Speaker Type	Surround Sound
Special Feature	Bass Boost, Stereo Pairing, Wireless
Recommended Uses For Product	For Smartphones or Tablets
Compatible Devices	Smartphone, Tablet
Subwoofer Diameter	6.7 Inches
Controller Type	Google Assistant, vera
Surround Sound Channel Configuration	5.1
Included Components	Sound Bar, Wireless Subwoofer, Satellite Speakers (x2), 5’ RCA/3.5mm Mini Jack Cable, 5’ 3.5mm Cable, 5’ Optical Toslink Cable, 5’ Digital 75 RCA (Coaxial / SPDIF), 5’ HDMI Cable, Power Cord for Sound Bar & Subwoofer, Satellite Speaker Wires, QSG
Product Dimensions	3.2"D x 36"W x 2.1"H
Age Range (Description)	Adult
Item Weight	12.62 Pounds
Is Waterproof	FALSE
Warranty Type	One Year Parts & Labor Warranty
Control Method	Voice
Wireless Communication Technology	Bluetooth, Wi-Fi
Speaker Size	43 Inches
Power Source	Battery Powered
Signal-to-Noise Ratio	101 dB
Woofer Diameter	6.7 Inches
Water Resistance Level	Not Water Resistant
Customer Package Type	Standard Packaging
Number of Batteries	2 AAA batteries required.
Audio Driver Type	Dynamic Driver
Subwoofer Connectivity Technology	Wireless
Connectivity Protocol	Bluetooth, Wi-Fi
Includes MP3 player?	No
Processor Count	1
Total Ethernet Ports	1
Number of USB 2 Ports	1
UPC	845226015328
Style	New
Manufacturer	VIZIO
Brand Name	VIZIO
Item Weight	12.62 pounds
Item model number	SB3651-E6
Batteries	2 AAA batteries required.
Is Discontinued By Manufacturer	No
Output Wattage	50 Watts
Special Features	Bass Boost, Stereo Pairing, Wireless

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