Ultra Office Chair Instructions

Here are detailed instructions for three Ultra office chairs:

1. Gaotian GTChair Butterfly Ultra Ergonomic Chair Key features include a Dynamic Island lumbar pillow, a synchronized gliding system, a 5D wired-control armrest, a 4D large headrest, and a 160° large-angle recline.

• Dynamic Island Lumbar Pillow: Utilizes dynamic following lumbar support technology, which adapts by moving up and down automatically to continuously fit the lumbar curve while sitting upright or reclining, relieving prolonged sitting pressure.
• Synchronized Gliding System: When reclining, the seat cushion slides forward with the backrest to maintain hip-lumbar contact, preventing the waist from hanging in the air, suitable for midday nap scenarios.
• 5D Wired-Control Armrest: Supports multi-dimensional adjustments including height, forward and backward, left and right, and rotation, paired with a wired-control dial design for operation without bending over, suitable for multiple scenarios such as office work and gaming.
• 4D Large Headrest: Provides large-area bionic support for the head and neck, supporting adjustments in height, forward and backward, and pillow surface rotation, fitting the neck while sitting upright or reclining, suitable for family sharing across a wide range of heights. Applicable scenarios include prolonged sitting office work, midday naps, gaming, and study rooms, targeting office workers, gamers, and home office users.

2. Igrow Alpha Ultra Ergonomic Chair Key features include a 4D headrest, a four-level adjustable lumbar support system, a backrest sliding-down function, a 3D adjustable armrest, and a 150° recline.

• 4D Headrest: Supports neck-following adjustments forward and backward, up and down flipping, and small and large upward tilts to accommodate different sitting postures.
• Lumbar Support System: The four-level adjustment can push forward to increase lumbar support force, supporting locked or adaptive modes to meet personalized support needs.
• Backrest and Seat Cushion: The backrest has a sliding-down function, and the seat cushion supports significant forward and backward adjustments to optimize body fit.
• 3D Adjustable Armrest: Supports upward tilting, single/double joint rotation, and height adjustment, with a maximum recline of 150° and three-level locking, suitable for people ranging from 1.6 meters to 1.95 meters in height.

3. Sihoo C300 Second Generation Ultra Ergonomic Chair Key features include a four-bar linkage + five-zone dynamic tracking system, bionic joint armrests, breathable mesh fabric, an adaptive chassis, and a 135° recline.

• Dynamic Support System: When leaning forward to type, the backrest automatically moves back 2cm and resets when standing up, with adjustable elastic support force for the lumbar pillow to adapt to dynamic office needs.
• Bionic Joint Armrests: Support 90° rotation, flexibly adapting to different usage scenarios such as office work or gaming operations.
• Breathable Mesh Fabric and Adaptive Chassis: High-density mesh fabric improves breathability by 30%, and the chassis can bear up to 150kg without noise, ensuring comfort during prolonged sitting.
• Recline Function: The angle can be adjusted infinitely from 90° to 135°, and when lying down for a nap at 120°, the headrest can support the back of the neck, suitable for users who sit for long periods.