SIHOO M18 025 BLACK ERGONOMIC OFFICE CHAIR Mecha Membrane Keyboard 🔊 Handy Volume Knob -

🔊 Handy Volume Knob - Delicate volume knob combined with on/off switch ensures you a convenient and precise volume adjustment

mechanical engineer，does its best to make every step comfortable and safe for every customer

A precision-molded PBT keycap sets for comfortable typing during both work and play

Name USB-C to USB 3

SIHOO M18 025 BLACK ERGONOMIC OFFICE CHAIR Mecha Membrane Keyboard 🔊 Handy Volume Knob -Adjustable head restraint allows the neck to lean easily and comfortably, adjustable lumbar support bracket for free adjustment of height depth, 3D adjustable armrest for different office applications, 90 120 arbitrary backrest adjustment for multiple work positions, any switch 10cm lift, 360 Freedom to rotate freely 3D handrail. SIHOO is recommended by Ergonomics Application Association. SIHOO's ergonomic design is based on the human body dynamic