Stage Less Memory Position Locking Push the backwards tilting handle with right hand to ,unlock the backrest tilting when hear the "click" sound; Then recline to the desired position. Push the handle forward to position,the backrest tilt angle can be stopped in the ideal position Stage less memory position locking,allow user to sit and adjust the best comfortable reclining position,when user left the chair,the backrest can store to the original position automatically to keep the uniformity working and home environment. Iphone Speaker Box Press the music logo of the box to open the box,and have youe Ipone/Ipad or other music player connected with the speaker cable.Then put your device into box and push box inward to close the box. Attached with the free electricity Philips stereo surrounding speaker system,this can be suited with Iphone/Ipad etc.music player.