Original Design Gaming Chair with Bluetoooth Speakers Blutooth Music Speakers Dual bluetooth wireless audio systemImmersive stereo sound effectsCan be connected to mobile phones, laptops or other devices that support bluetooth. (*The host computer needs to be equipped with a Bluetooth USB adapter transmitter.) Colorful RGB Led Lights RGB Led light strip surroundingUp to 358 flicker patterns7 static monochromeSpeed and brightness adjustment Specification: Back Rest Reclining Angle: 90-135 Degrees Adjustable Height Range: 10CM Applicable Height: 155-190 cm / 5ft - 6ft 3in Overall Dimension (L x W x H): 60x60x121-131cm / 23.6x23.6x47.6-51.6" Backrest Dimension: 50x82cm / 19.7x32.3" Seat Dimension: 45x43cm / 17.7x16.9" Comfortable Headrest 2-POINTS Lumbar Massage Thickened Sponge Cushion Padded Linkage Armrests Class 3 Gas Lift Weight Capacity: 397lbs Smooth-Rolling Casters LED light remote control NOTE: Q1 : Missing screws A1 : In order to avoid the leakage of screws, all the screws will be installed in the screw holes in the corresponding positions of the chair in advance, and spare screws will be attached. Q2 : Only a part of the light work. A2 : The LED pixels quantity can be adjusted: 1.Press "SETTING" for 5 seconds until white strip flash to enter the setup menu 2.Press MODE +/- to adjust the quantity of the LED light pixels 3.Press "SETTING" to finish the setting If you meet any product or package problems, please provide pictures to show us and we will help you solve the problem.