SIHOO M57 B112 GREY ERGONOMIC OFFICE CHAIR Mouse Anti ghosting all 87 keys

Anti ghosting all 87 keys are conflict free nkey rollover featuring 12 multimedia keyboard keys and a non-slip ergonomic

Impedance at 1KHz 32ohm +/- 15%

such as steel frame

it is easy to disassemble and tool free

SIHOO M57 B112 GREY ERGONOMIC OFFICE CHAIR Mouse Anti ghosting all 87 keysHIGH QUALITY & EASY TO ASSEMBLE SIHOO office chairs have been certified by BIFMA and SGS, passed 2000lbs static pressure test. It can carry a weight of up to 330lbs. Every part of this computer office chair has strict safety quality testing, cushion impact test, handrail fatigue test, chair foot static pressure test, ect. Simple instructions enable anyone to put chair together in eight simple steps! FOR LONG TIME SITTING The mesh back and mesh seat