This is a replacement left and right speaker assembly for Lenov0 IdeaPad S540-15 Laptop series, No soldering required, Simply plugs into the motherboard, repair distorted sound or issues relating to having NO sound! FRU: 5SB0S31886 Manufacturer Part Number(s): HQ20330542000, NB8606A_Speaker Box YC Connector type: 4-wire 4-pin, Plug In, 4 Ohm /2W Wire overall Length approx: 6.80 cm/2.70-inches Condition: New and Original, unused in perfect condition NOTE: the screw NOt included, Please retain the original screw for the installation of this part. Ensure that the alignment posts are threaded through the rubber grommets on the speaker. Reference Compatible with Laptop models: - IdeaPad S540-15IML (Type: 81NG) - IdeaPad S540-15IWL (Type: 81NE/81Q1) - Xiaoxin Air-15 (2019) series What's in the box: 1x Left & Right Speaker assembly