Description
Computer Body Scan System
Equipped with the latest technology, it allows for the rollers to map the back curvature with even more accuracy, which translates into a more precise massage hitting all the key areas. Regardless of your body type, this highly advanced chair will self-adjust making each massage experience feel customized.

2 Stage Zero Gravity
Inspired by NASA technology, the Zero gravity position is the perfect position to enjoy a massage, aligning your back relative to your thigh at an optimal level of comfort. When reclined into the zero gravity position, the complete weight of your back is virtually supported by the backrest which maximizes the intensity of the massage. This also reduces the vertical stress on the spine. There are 2 stages of zero gravity, the 2nd being more reclined. Study show that when the legs are at or above heart level, it promotes better circulation.

True Ergonomic S-Track
The OS-4000 Zero Gravity massage chair is ergonomically designed to contour a variety of spine shapes. The Spine curvature is unique from one individual to the next. The S-track system allows the roller heads to massage along the back from the neck down to the lower spine with a consistent pressure in the massage, along with a comfortable support. The typical massage tracks, being linear, create an inconsistency in pressure applying weak massages in the neck and lower back.

Next Generation Air Massage Technology
The airbag massagers have been upgraded and engineered, reducing the number of airbags and valves but at the same time increasing the surface coverage. Less power is consumed and runs more quietly with the reduction of air pumps and valves, allowing for a more tranquil massage experience. The material used to create the airbags have also been modified with industrial-grade material for durability, yet soft and pliable to provide comfort and consistency.

Arm Air Massagers
Along with mechanical advancement the material has also incorporated some upgrades, such as the arm massaging area. Using a durable spandex, the bottom portion of the arm massager has been lined with small rubber bumps to invigorate the senses as the air bags compress the tops and bottom of the forearm and hands.

Hips and Lumbar Squeeze
Hip airbags are located on the left and right side of the seat base. When inflated it will compress the hips inwards, applying a firm massage to the thighs and hips. When the airbags inflate on the hips it may also be used to hold the user in place as the back massager rollers move downwards, working on the lower section of the back.
On the lower portion of the backrest, there are 2 lumbar airbags. When inflated it will squeeze the outer portion of the lower back inwards, providing a mild massage.
On the lower portion of the backrest, there are 2 lumbar airbags. When inflated it will squeeze the outer portion of the lower back inwards, providing a mild massage.

Foot and Calf Massage
There are multiple air bags along the sides, and back of the legs, and feet which inflate to apply a compression massage. Located along the bottom foot massager are 2 pressure point nodes. When the air bags inflate, the foot and calves are firmly pressed down on the pressure points for an invigorating massage. The experience simulates a massage therapist pressing down with their thumbs.

Lower Back Heat Therapy
There are 2 heating pads, one on each side in the lower lumbar area. The heat therapy is a great compliment to roller and airbag massage. The heating pad is not intended to be use for more than 30 minutes a day or the duration of a massage preset program.

Shoulder Airbag Massage
The outer and top part of the shoulders have not been forgotten. Airbags have been placed on both sides of the chair. As the airbags inflate the shoulders pressed inwards and back pinning your shoulders the backrest. This will stretch out muscles in the shoulder region where carry most of their tension.

Full Size Easy-to-Use Remote
The Osaki OS-4000 remote presents one of the largest viewing screens making it easy view what functions the chair has activated. There is also a flip down cover to access the manual functions of the chair. The remote allows you to select the massage type, intensity, speed and location. You can also independently select the area of airbag massage. The manual mode massage includes kneading, tapping, shiatsu, rolling, combination and Swedish.

Wireless Controller
Located on the top right of the main remote, you will find a compact wireless remote allowing you to control the main features of the chair without having to struggle to reach the main remote in the reclined position.

Auto Leg Scan
The calf and foot massager is capable of making adjustments according to each individual’s leg length ensuring that the massage air bags are concentrating on the correct areas. At the start of the massage, the chair will fully extend out and then retract. Once the foot massager has reached the desired length, firmly press your totes down to indicate the chair to stop.

Charlotte K. –
This chair is great, my husband and I both love it! Set up was so nice. I’m very grateful for the good service. We love the features, fits both of us, so adjustable, glad I went with the this, super nice.
Joseph Z. –
The massage chair has multiple settings, what I like on this chair is it has a largest viewing screen making it easier to view what functions the chair has activated. I love the result and I really enjoy the different preset programs, every one of the preset programs are unique, each offering a different focus of massage style. 2 Thumbs up to all the functions.
Sofia J. –
The massage chair is equipped with the latest technology, it has more precise massage and has 2 stage zero gravity which gives a perfect position. Overall,it works well and it gives more happiness to my family.
James C. –
I have m.s. and to keep my muscles active it was recommended for me to have weekly massages. This chair works fabulous for this and has already saved me quite a bit and has done a more thorough job than going to someone. Love chair and you can change intensity to your preferences.
Walter M. –
This chair offers plenty of options, two levels of zero gravity, seat vibration, and much more. It comes in four pieces–the main unit, the back, and the two sides. Assembly was easier than I thought it would be, at least after I got the sides on. That was the hardest and most time consuming because a bar seems to be blocking the back screws, You really have to manuever to get those in. The secret is to get the bolt started, then slide the thick portion of the tool that is provided onto the bolt and over the bar. Getting the tool back off after you tighten the bolt is a bit difficult, but once the sides are on, the rest is relatively easy. This is a very heavy chair, though, so you will need someone to help you move it (the base portion at least–that’s where most of the weight is located), The remote is a bit complicated–check out YouTube for a tutorial on how to use it. The detachable remote is handy so that you don’t have to remove your arm from the arm rest to make adjustments to speed or intensity. This chair is great for people with back problems, or for someone who just likes a good massage.
James C. –
I have m.s. and to keep my muscles active it was recommended for me to have weekly massages. This chair works fabulous for this and has already saved me quite a bit and has done a more thorough job than going to someone. Love chair and you can change intensity to your preferences.
Charlotte K. –
This chair is great, my husband and I both love it! Set up was so nice. I’m very grateful for the good service. We love the features, fits both of us, so adjustable, glad I went with the this, super nice.