The os-4000 also features beautifully updated upholstery and includes zero gravity, a 30 inch roller stroke, body scan technology, s-track massage robot, full body air massage, seat vibration, and heat therapy for your back.
The os-4000 also features beautifully updated upholstery and includes zero gravity, a 30 inch roller stroke, body scan technology, s-track massage robot, full body air massage, seat vibration, and heat therapy for your back.
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